#CB0631
Closest named color: Cherry (#CF0234). oklch(53.4% 0.213 21.1), rgb(203, 6, 49).
Aa
White text reads best on this color (5.81:1).
About this color
#CB0631 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.213 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.009 away. White text reads best on it, at 5.81:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.213) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.60:1 |
| White text | 5.81:1 |
Values
| HEX | #CB0631 |
| RGB | rgb(203, 6, 49) |
| HSL | hsl(347, 94%, 41%) |
| OKLCH | oklch(53.4% 0.213 21.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #CB0631 | 5.81:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #CB0631 | 3.60:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #CB0631 text on white | 5.81:1 | AA | Lc 76.5 | Fine for body text |
| #CB0631 text on black | 3.60:1 | AA large text | Lc -25.2 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FBCCCA
oklch(88.5% 0.054 21.1)
-
Step 300
300
#F8A8A6
oklch(80.9% 0.095 20.9)
-
Step 400
400
#F17576
oklch(70.8% 0.153 21.2)
-
Step 500
500
#E84853
oklch(63.1% 0.196 21.1)
-
Step 600
600 (this color)
#CB0631
oklch(53.4% 0.213 21.1)
-
Step 700
700
#B6002A
oklch(49.1% 0.197 21.1)
-
Step 800
800
#940E24
oklch(42.7% 0.163 21.1)
-
Step 900
900
#771922
oklch(37.7% 0.128 21)
-
Step 950
950
#461114
oklch(27% 0.081 21.3)
#CB0631 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #534C30 | 0.237 |
| Deuteranopia (no green cones) | #7F732A | 0.216 |
| Tritanopia (no blue cones) | #E0001F | 0.046 |
| Achromatopsia (no color) | #656565 | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB0631
#CB0631
oklch(53.4% 0.213 21.1)
- #007C83
#007C83
oklch(53.4% 0.091 201.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #CB0631, closest first.
No curated palette has a color within ΔE 0.04 of #CB0631.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.009
- Lipstick Red #C0022F ΔE 0.024
- Ruby #CA0147 ΔE 0.028
- Rose Red #BE013C ΔE 0.032
- Scarlet #BE0119 ΔE 0.035
- Crimson #DC143C ΔE 0.039
- Lipstick #D5174E ΔE 0.040
- Firebrick #B22222 ΔE 0.053
Use #CB0631 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.