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Programmable colors: bridging design and code @...
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Irina Nazarova
June 23, 2025
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Programmable colors: bridging design and code @ Figma Confir 2025
by Irina Nazarova and Arthur Objartel from Evil Martians
Irina Nazarova
June 23, 2025
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Transcript
Irina Nazarova CEO Evil Martians Inc. she/her Arthur Objartel Product
Designer Evil Martians Inc. he/him Programmable colors: bridging design and code
Color draws attention
We use color to draw attention
Color is powerful
Digital color is getting more powerful
Can you spot the difference? Use P3 color space to
access extra vibrant and deep colors unavailable with HEX #ff0000 color(display-p3 1 0 0)
Changes in the color of objects over time. Science Museum
Group, UK
Did we get burnt in the 90s?
None
None
None
What if? What if we simply need better tools to
use color safely? What if we give you these tools today and see what happens?
How would you approach this problem?
brand color
Primary Button Danger Button Success Button
Primary Button Danger Button Success Button
Primary Button Danger Button Success Button same as blue but
red same as blue but green
Let’s adjust the hue slider! HSB
Primary Button Button Danger Button Success Too dark Too bright
Not accesible
Primary Button Button Danger Button Success How do we achieve
this?
Perceptual uniformity P3 gamut OK LCH color model at a
glance
How do we think about color? Make it a little
lighter Increase saturation Nudge it to violet
What color is this? #F47246
:) #F47246
Here’s where OKLCH comes in (0.7 0.17 40)
ok ch( l 0.6 ok ch( l 0.8 +0.2 =
more white Lightness ok ch( l 0.4 -0.2 = more black L for Lightness, from 0 to 1
okl h( c 0.20 +5 = more orange okl h(
c 0.15 Chroma okl h( c 0.05 -5 = less orange C for Chroma, from 0 to 1
oklc ( h 120) +80 = green oklc ( h
40) Hue oklc ( h 0) -40 = pink H for Hue, from 0 to 320
What are the practical benefits of OKLCH
1 Cohesive colors
Cohesive colors HEX Inconsistent palette OKLCH Feels like one family
Color accessibility OKLCH HEX Primary Button Primary Button Primary Button
Primary Button oklch(0.5 0.26 300) #8368d6 oklch(0.5 0.26 135) #A4EA00 LOW CONTRAST
Theme-ability
Dark-mode made easy
2 Easy to manipulate
Color formulas (0.6 0.2 260)
Color formulas :root { ( ); } --base-color: oklch 0.6
0.2 260
:root .button:hover { ( ); } { (from ( )
(l + ) h); } --base-color: --button-color: --base-color oklch oklch var calc 0.6 0.2 260 0.1 c Color formulas calc(l + ) 0.1
:root .button:hover { ( ); } { (from ( )
(l + ) h); } --base-color: --button-color: --base-color oklch oklch var calc 0.6 0.2 260 0.1 c Color formulas calc(l + ) 0.1
3 More colors
P3 color space 50% more colors All colors human eye
can see sRGB color space P3 color space
Future proof: Rec2020 and other new tech Rec2020 All colors
human eye can see P3 color space sRGB color space 76% more colors
4 Supported by...
All browsers! Chrome 133 Edge 133 Safari 18.3 Firefox 135
Chrome for Android 133 Safari on iOS 18.3 Samsung Internet 27 Opera Mobile 80 Android browser 133
And fully embraced by Tailwind
You can use P3 and OKLCH in Figma! You can
put OKLCH in color picker! Select Display P3 in Figma
You can use P3 and OKLCH in Figma! You can
copy P3 color in DevMode
Do you know how to fix this now? Primary Button
Button Danger Button Success
Let’s adjust the hue slider! (but in OKLCH)
Brand Button oklch(0.6 0.2 260) Error Error ??? Success Success
??? 95 95
Brand Button oklch(0.6 0.2 260) Error Error ??? Success Success
oklch(0.62 0.2 138) 95
Brand Button oklch(0.6 0.2 260) Error Error oklch(0.62 0.2 27)
Success Success oklch(0.62 0.2 138) 95
Primary Button Button Danger Button Success Result!
Primary Button Primary Button Primary Button Button Danger Button Danger
Button Danger Button Success Button Success Button Success Primary Hover Pressed
Primary Button Primary Button Primary Button Button Danger Button Danger
Button Danger Button Success Button Success Button Success Primary Hover Pressed
None
TOOLS
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Roman Shamin Andrey Sitnik Designer + Developer Boundary Blurring Designer
who builds Engineer who designs
#programmablecolor We all have examples of great use of color!
Join us in sharing ideas and examples on X, Bluesky and other socials! Thank you!
Thank you!
Thank you.