NEW · 15-PART SERIES
Advanced Color Science: color beyond the hex value
Follow color from standards and human vision through spectra, pigments, lighting, material appearance, print production, HDR, and cinema color management.
Explore the series →HEXCHECK EDITORIAL
Color that works outside the swatch.
Practical writing about color science, accessibility, homes, design systems, browser color, physical materials, lighting, print, HDR, and the decisions that turn attractive values into usable results.
LATEST ARTICLES
Color theory with a job to do
Evergreen explanations connected directly to current HexCheck tools and real decisions.
HOME · LIGHTING
Why paint colors change throughout the day
Daylight direction, bulbs, reflected surfaces, finish, and visual adaptation all change the color that reaches the eye.
Read article →DESIGN SYSTEMS
From a color palette to a semantic brand system
Assign purpose, modes, states, and governed tokens so a palette becomes reusable product language.
Read article →ACCESSIBILITY
How to build an accessible color palette
Assign roles first, test the pairs that actually touch, and design states without flattening the whole system.
Read article →COLOR SPACES
OKLCH vs. HSL: which one should you use?
HSL is familiar. OKLCH is better aligned with perceived lightness. Learn where each model helps and where it misleads.
Read article →COLOR MANAGEMENT
Why the same color looks different on different screens
Brightness, gamut, calibration, ambient light, browser color management, and panel behavior change what a hex value looks like.
Read article →COLOR THEORY
How to make a monochromatic palette that does not feel flat
A single hue can still support depth, hierarchy, states, and contrast when lightness and chroma are handled independently.
Read article →DESIGN SYSTEMS
Semantic color tokens for resilient design systems
Appearance labels describe values. Semantic tokens describe purpose and make themes safer to change.
Read article →GRADIENTS
sRGB, OKLab, and OKLCH gradients are not the same
The interpolation space determines every color between the stops and changes whether a gradient becomes gray, dark, or vivid.
Read article →PUT IT INTO PRACTICE
Continue in HexCheck
Articles explain the decision. The tools let you test it against your actual colors and context.
TOOL
Contrast Lab
Check an exact pair, preview content, and find the smallest accessible correction.
Open Contrast Lab →HOME TOOL
Lighting Simulator
Compare one wall color across daylight, bulb temperature, brightness, finish, and reflected floor color.
Open Lighting Simulator →PRO WORKSPACE
Brand Kits
Turn semantic colors, typography, assets, voice, previews, and governance into one system.
Preview Brand Kits →PALÉTTE
Ask the color rolodex
Ask advanced color questions and connect the answer to colors already loaded in a supported tool.
Open Palétte guide →