#C91A21
Closest named color: Cherry (#CF0234). oklch(53.5% 0.205 26.5), rgb(201, 26, 33).
Aa
White text reads best on this color (5.74:1).
About this color
#C91A21 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.205 and its hue 27°. 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 5.74:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.205) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #C91A21 |
| RGB | rgb(201, 26, 33) |
| HSL | hsl(358, 77%, 45%) |
| OKLCH | oklch(53.5% 0.205 26.5) |
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 #C91A21 | 5.74:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #C91A21 | 3.65:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #C91A21 text on white | 5.74:1 | AA | Lc 76.7 | Fine for body text |
| #C91A21 text on black | 3.65:1 | AA large text | Lc -25.1 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#FACDC7
oklch(88.6% 0.052 27)
-
Step 300
300
#F7AAA1
oklch(81% 0.092 26.7)
-
Step 400
400
#EE786E
oklch(70.6% 0.147 26.4)
-
Step 500
500
#E54E47
oklch(63.1% 0.188 26.6)
-
Step 600
600 (this color)
#C91A21
oklch(53.5% 0.205 26.5)
-
Step 700
700
#B4121B
oklch(49.1% 0.191 26.4)
-
Step 800
800
#921619
oklch(42.6% 0.158 26.3)
-
Step 900
900
#751D1B
oklch(37.7% 0.122 26.4)
-
Step 950
950
#451310
oklch(27% 0.078 27)
#C91A21 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) | #584E1E | 0.224 |
| Deuteranopia (no green cones) | #817316 | 0.204 |
| Tritanopia (no blue cones) | #DE0020 | 0.041 |
| Achromatopsia (no color) | #666666 | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C91A21
#C91A21
oklch(53.5% 0.205 26.5)
- #007C88
#007C88
oklch(53.6% 0.092 206.6)
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 #C91A21, 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 0.030
- Lipstick Red #C0022F ΔE 0.032
- Rose Red #BE013C ΔE 0.046
- Firebrick #B22222 ΔE 0.046
- Crimson #DC143C ΔE 0.047
- Dull Red #BB3F3F ΔE 0.047
- Ruby #CA0147 ΔE 0.048
Use #C91A21 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.