Recommended Free Tools
A var() fallback does not protect against a browser that accepts an oklch() token inside a custom property but cannot use that value as a color. To support that case, give the variable a conventional color by default and assign the OKLCH value only inside an @supports query for the relevant color syntax. Keep a conventional declaration at the point where the variable is used, too.
Why doesn’t var(--color, fallback) work for old browsers?
The fallback in var(--ink, #202020) is used when the custom-property reference is missing or invalid. It is not a compatibility fallback for a browser that does not understand the color syntax stored in a defined custom property. MDN’s guide to using CSS custom properties makes the distinction explicit: “Fallback values aren’t used to fix compatibility issues for when CSS custom properties are not supported, as the fallback value won’t help in this case.”
As an Amazon Associate I earn from qualifying purchases.
Custom properties can hold token sequences without checking whether those tokens are valid for the property that will eventually consume them. If an unsupported oklch() value is substituted into color, that declaration can become invalid at computed-value time. The browser then uses the property’s inherited or initial value. A preceding color: #202020 is therefore not a dependable escape route: the later color: var(--ink) may win the cascade before its substituted value proves unusable.
Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minutePC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11How should you write an OKLCH fallback that works?
Set conventional colors as the default custom-property values, preserve direct conventional declarations before the variable-based declarations, and override the tokens only when a feature query confirms support for the color value.
#1 Best Overall
- ACHIEVE TRUE COLOR - Ensures your monitor displays colors accurately, critical for photography, design, and video editing, with unlimited gamma, whitepoint, and brightness settings. Standard Calibration provides professional-grade results in 90 seconds, or New Deeper Calibration measures more points across the grayscale for an average 30%+ accuracy improvement (varies by display).
- OPTIMIZE DISPLAY PERFORMANCE - Calibrate a wide range of backlight types including Wide LED, Standard LED, OLED, QD-OLED, Apple Liquid Retina XDR, and Mini LED, with support for brightness up to 12,000 nits, ensuring consistent and accurate color across all your screens.
- ENHANCE WORKFLOW EFFICIENCY - Projector Calibration feature allows for accurate color representation during presentations, while Display Analysis/MQA provides comprehensive screen quality assessment. Export 3D LUTs (.cube) for compatible video monitors, with support for Rec.709, Rec.2020, and DCI-P3.
- WIDE DEVICE COMPATIBILITY - Supports unlimited number of displays (per computer capability) and offers native USB-C connection plus an included USB-A adapter, ensuring seamless connectivity with modern laptops and desktop computers for streamlined use. StudioMatch and SpyderTune keep color consistent across multi-monitor setups.
- USER-FRIENDLY SOFTWARE - Features an intuitive interface supporting 10 languages, including English, Spanish, French, German, Chinese and Japanese, making calibration accessible to a global audience. Existing SpyderPro users upgrade to the new software free.
:root {
--surface: #f4f4f4;
--ink: #202020;
}
.card {
background-color: #f4f4f4;
background-color: var(--surface);
color: #202020;
color: var(--ink);
}
@supports (color: oklch(60% 0.2 30)) {
:root {
--surface: oklch(97% 0.01 250);
--ink: oklch(25% 0.02 250);
}
}The defaults provide a usable token value in browsers that support custom properties but not the tested OKLCH syntax. The direct declarations provide a fallback for browsers without custom-property support. Browsers that accept the queried syntax use the enhanced tokens. This pattern follows the documented parsing and feature-query rules; it is not a claim of independent browser testing.
What does @supports (color: oklch(...)) check?
@supports is a feature query: it tests whether the browser supports a CSS feature. For a new value of an existing property, test the property-value pair, not just the property name. @supports (color: oklch(60% 0.2 30)) asks whether the browser accepts that kind of OKLCH value for color. Put the enhanced custom-property assignments inside the query. MDN’s feature-query guide describes these rules as tests of support for CSS features such as properties and property values.
Rank #2
- SPECIFICATIONS: Monitor calibration colorimeter with Easy 1 2 3 software workflow, USB C connection, compact body approx. 34mm tall x 37mm diameter, adjustable counterweight for screen placement, supports up to 2 displays, brightness target selection including Native or Photo with before and after check.
- EASY SETUP: Guided 1 2 3 workflow makes calibration fast and approachable, helping photographers and creators achieve more accurate color without complicated settings, so you can edit with confidence and trust what you see on screen.
- COLOR ACCURACY: Corrects common monitor color shifts to deliver truer tones and more reliable contrast, improving consistency across editing sessions and helping your images look closer to final output on other screens and devices.
- DUAL DISPLAY SUPPORT: Calibrates up to 2 monitors for matching color across a multi screen workspace, ideal for photo editing, video work, and creative setups where consistent viewing on both displays matters.
- BEFORE AFTER CHECK: Built in comparison view lets you instantly see the difference after calibration, making it easy to confirm improved accuracy and maintain consistent results by repeating the process on a regular schedule.
Feature queries are a progressive-enhancement tool, not a requirement for every new CSS feature. Unsupported declarations are generally ignored. They are useful here because a custom property can store a value before the browser validates it against the consuming property.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Does the query cover every OKLCH feature?
No. The query checks the syntax in the declaration you give it; support for basic absolute oklch() does not establish support for every newer OKLCH-related feature, such as relative-color syntax. If your compatibility target depends on a specific syntax, test that syntax and verify it against your browser policy. MDN marks oklch() as widely available across browsers since May 2023, while noting that support for some parts varies. See its OKLCH reference for current syntax and compatibility details.
Rank #3
- SPECIFICATIONS; Includes Calibrite Display 123 colorimeter for monitor calibration plus ColorChecker Passport Video 2 for video and photo capture control, designed for exposure reference, white balance setup, and consistent color workflow from capture through edit.
- CAPTURE CONTROL; Passport Video 2 helps set accurate white point, verify exposure, and match multiple cameras on set, giving filmmakers and hybrid shooters a reliable reference for consistent footage in changing or mixed lighting conditions.
- MONITOR CALIBRATION; Display 123 provides an easy monitor profiling workflow so photographers and creators can trust on-screen color when editing, grading, designing, or delivering work that must remain consistent across displays.
- CREATIVE CONFIDENCE; Built for content creators who want dependable color management, this kit reduces trial-and-error corrections, improves workflow efficiency, and supports accurate results for both still photography and professional video production.
- PRO CREATOR WORKFLOW; Ideal for videographers and photographers who require consistent color standards across multiple cameras, monitors, and software platforms, helping maintain professional results from on-set capture through final post-production.
A successful feature query establishes syntax support, not whether a color meets your design or accessibility goals. Check contrast and visual suitability separately.
Quick Recap
Rank #4
- 𝗘𝗡𝗦𝗨𝗥𝗘 𝗔𝗖𝗖𝗨𝗥𝗔𝗧𝗘 𝗖𝗢𝗟𝗢𝗥: Groundbreaking lens-based color engine provides a higher level of color accuracy for multiple monitors. Spyder X Pro features room-light monitoring, automatic profile changing and significantly more precise screen color, shadow detail and white balance.
- 𝗘𝗔𝗦𝗬-𝗧𝗢-𝗨𝗦𝗘: Spyder X Pro is so intuitive, you don’t have to be a color expert. It features quick and easy single-click calibration and wizard workflow with 12 predefined calibration targets for advanced color accuracy.
- 𝗤𝗨𝗜𝗖𝗞 𝗖𝗢𝗟𝗢𝗥 𝗖𝗔𝗟𝗜𝗕𝗥𝗔𝗧𝗜𝗢𝗡: Calibrating your monitor to achieve color precision is quick and easy, taking just a minute or two.
- 𝗖𝗢𝗠𝗣𝗔𝗥𝗘 𝗕𝗘𝗙𝗢𝗥𝗘 & 𝗔𝗙𝗧𝗘𝗥: SpyderProof functionality provides before-and-after evaluation of your display and allows you to see the difference using your own images.
- 𝗖𝗔𝗟𝗜𝗕𝗥𝗔𝗧𝗘 𝗠𝗨𝗟𝗧𝗜𝗣𝗟𝗘 𝗗𝗜𝗦𝗣𝗟𝗔𝗬𝗦: Spyder X software allows you to calibrate multiple laptops and desktop monitors.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
