#C81B23
Closest named color: Cherry (#CF0234). oklch(53.4% 0.204 26.2), rgb(200, 27, 35).
Aa
White text reads best on this color (5.77:1).
About this color
#C81B23 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.204 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.026 away. White text reads best on it, at 5.77:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.204) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #C81B23 |
| RGB | rgb(200, 27, 35) |
| HSL | hsl(357, 76%, 45%) |
| OKLCH | oklch(53.4% 0.204 26.2) |
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 #C81B23 | 5.77:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #C81B23 | 3.63:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #C81B23 text on white | 5.77:1 | AA | Lc 76.8 | Fine for body text |
| #C81B23 text on black | 3.63:1 | AA large text | Lc -24.9 | 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
#F9CDC8
oklch(88.5% 0.05 25.7)
-
Step 300
300
#F6AAA2
oklch(80.9% 0.091 25.9)
-
Step 400
400
#EE786F
oklch(70.6% 0.147 25.9)
-
Step 500
500
#E54E49
oklch(63.1% 0.188 25.9)
-
Step 600
600 (this color)
#C81B23
oklch(53.4% 0.204 26.2)
-
Step 700
700
#B4141D
oklch(49.2% 0.19 26.1)
-
Step 800
800
#92171A
oklch(42.7% 0.157 26.2)
-
Step 900
900
#751D1C
oklch(37.7% 0.122 25.8)
-
Step 950
950
#451311
oklch(27% 0.077 26)
#C81B23 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) | #574E21 | 0.223 |
| Deuteranopia (no green cones) | #817319 | 0.202 |
| Tritanopia (no blue cones) | #DD0021 | 0.041 |
| Achromatopsia (no color) | #666666 | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C81B23
#C81B23
oklch(53.4% 0.204 26.2)
- #007B87
#007B87
oklch(53.3% 0.091 206.7)
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 #C81B23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.026
- Scarlet #BE0119 ΔE 0.029
- Lipstick Red #C0022F ΔE 0.030
- Rose Red #BE013C ΔE 0.044
- Firebrick #B22222 ΔE 0.044
- Dull Red #BB3F3F ΔE 0.045
- Ruby #CA0147 ΔE 0.047
- Crimson #DC143C ΔE 0.047
Use #C81B23 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.