Radix Crimson

Radix UI's crimson scale — 12 semantically labeled steps published in both light and dark variants. A vibrant red-pink, slightly cooler than red. Step 1 is app background, step 9 is the solid brand color, step 12 is high-contrast text. The same step number means the same semantic role across light and dark, with different hex values per mode.

28 swatches 14 light roles 14 dark roles radixwarmdesign-systemscaledual-mode

Swatches

crimson-1-light
#FFFCFD
App background.
crimson-2-light
#FEF7F9
Subtle background.
crimson-3-light
#FFE9F0
UI element background.
crimson-4-light
#FEDCE7
Hovered UI element background.
crimson-5-light
#FACEDD
Active / selected UI element background.
crimson-6-light
#F3BED1
Subtle borders and separators.
crimson-7-light
#EAACC3
UI element border and focus rings.
crimson-8-light
#E093B2
Hovered UI element border.
crimson-9-light
#E93D82
Solid background — the brand color step.
crimson-10-light
#DF3478
Hovered solid background.
crimson-11-light
#CB1D63
Low-contrast text.
crimson-12-light
#621639
High-contrast text.
crimson-1-dark
#191114
App background.
crimson-2-dark
#201318
Subtle background.
crimson-3-dark
#381525
UI element background.
crimson-4-dark
#4D122F
Hovered UI element background.
crimson-5-dark
#5C1839
Active / selected UI element background.
crimson-6-dark
#6D2545
Subtle borders and separators.
crimson-7-dark
#873356
UI element border and focus rings.
crimson-8-dark
#B0436E
Hovered UI element border.
crimson-9-dark
#E93D82
Solid background — the brand color step.
crimson-10-dark
#EE518A
Hovered solid background.
crimson-11-dark
#FF92AD
Low-contrast text.
crimson-12-dark
#FDD3E8
High-contrast text.
slate-11-light
#60646C
Neutral text imported from Radix Slate for legibility on the chromatic scale's mid-tone backgrounds. Step 11 is low-contrast text.
slate-12-light
#1C2024
Neutral text imported from Radix Slate for legibility on the chromatic scale's mid-tone backgrounds. Step 12 is high-contrast text.
slate-11-dark
#B0B4BA
Neutral text imported from Radix Slate for legibility on the chromatic scale's mid-tone backgrounds. Step 11 is low-contrast text.
slate-12-dark
#EDEEF0
Neutral text imported from Radix Slate for legibility on the chromatic scale's mid-tone backgrounds. Step 12 is high-contrast text.

Mode role mappings

Light mode (14 roles)

accent → crimson-8-light
accent-hover → crimson-7-light
background → crimson-1-light
error → crimson-12-light
primary → crimson-9-light
primary-hover → crimson-10-light
success → crimson-9-light
surface → crimson-2-light
surface-elevated → crimson-3-light
text-primary → slate-12-light
text-secondary → slate-11-light
text-tertiary → crimson-9-light
warning → crimson-9-light
warning-hover → crimson-10-light

Dark mode (14 roles)

accent → crimson-8-dark
accent-hover → crimson-7-dark
background → crimson-1-dark
error → crimson-12-dark
primary → crimson-9-dark
primary-hover → crimson-10-dark
success → crimson-9-dark
surface → crimson-2-dark
surface-elevated → crimson-3-dark
text-primary → slate-12-dark
text-secondary → slate-11-dark
text-tertiary → crimson-9-dark
warning → crimson-9-dark
warning-hover → crimson-10-dark

Provenance

Source
https://www.radix-ui.com/colors/docs/palette-composition/scales
License
MIT
Attribution
Radix Colors, Copyright WorkOS, Inc., MIT licensed. Imported from the radix-ui/colors repository on GitHub.
Imported
2026-05-18 (upstream version 3.0.0)
Notes
Radix publishes distinct hex values for each scale in light and dark mode. This atom carries both as -light and -dark suffixed swatches; modes.light.roles points at -light swatches and modes.dark.roles at -dark swatches. Crimson is a chromatic hue and makes a poor neutral for body text, so steps 11 and 12 of Radix Slate are imported as supplementary swatches and used for text-primary and text-secondary in both modes.