#CB2531
Closest named color: Cherry (#CF0234). oklch(54.7% 0.199 23.9), rgb(203, 37, 49).
Aa
White text reads best on this color (5.45:1).
About this color
#CB2531 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.199 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.022 away. White text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.199) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.84:1 |
| White text | 5.45:1 |
Values
| HEX | #CB2531 |
| RGB | rgb(203, 37, 49) |
| HSL | hsl(356, 69%, 47%) |
| OKLCH | oklch(54.7% 0.199 23.9) |
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 #CB2531 | 5.45:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #CB2531 | 3.84:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #CB2531 text on white | 5.45:1 | AA | Lc 75.5 | Fine for body text |
| #CB2531 text on black | 3.84:1 | AA large text | Lc -26.3 | 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
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F9CDC9
oklch(88.5% 0.05 24.2)
-
Step 300
300
#F5AAA5
oklch(80.9% 0.089 23.5)
-
Step 400
400
#ED7974
oklch(70.8% 0.144 23.9)
-
Step 500
500
#E35050
oklch(63.2% 0.183 24)
-
Step 600
600 (this color)
#CB2531
oklch(54.7% 0.199 23.9)
-
Step 700
700
#B21826
oklch(49.1% 0.185 24)
-
Step 800
800
#911921
oklch(42.8% 0.154 23.9)
-
Step 900
900
#741E20
oklch(37.7% 0.12 23.8)
-
Step 950
950
#441313
oklch(26.8% 0.076 23.7)
#CB2531 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) | #5B5330 | 0.218 |
| Deuteranopia (no green cones) | #83762A | 0.199 |
| Tritanopia (no blue cones) | #E0002C | 0.040 |
| Achromatopsia (no color) | #696969 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB2531
#CB2531
oklch(54.7% 0.199 23.9)
- #008089
#008089
oklch(54.7% 0.093 203.5)
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 #CB2531, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.022
- Crimson #DC143C ΔE 0.036
- Lipstick Red #C0022F ΔE 0.038
- Dull Red #BB3F3F ΔE 0.040
- Ruby #CA0147 ΔE 0.042
- Scarlet #BE0119 ΔE 0.043
- Lipstick #D5174E ΔE 0.043
- Rose Red #BE013C ΔE 0.047
Use #CB2531 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.