#D91237
Closest named color: Crimson (#DC143C). oklch(56.4% 0.22 21.1), rgb(217, 18, 55).
Aa
White text reads best on this color (5.13:1).
About this color
#D91237 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.220 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.008 away. White text reads best on it, at 5.13:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.220) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.09:1 |
| White text | 5.13:1 |
Values
| HEX | #D91237 |
| RGB | rgb(217, 18, 55) |
| HSL | hsl(349, 85%, 46%) |
| OKLCH | oklch(56.4% 0.22 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 #D91237 | 5.13:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #D91237 | 4.09:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #D91237 text on white | 5.13:1 | AA | Lc 73.0 | Content text, not long reading |
| #D91237 text on black | 4.09:1 | AA large text | Lc -28.7 | 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
#FDE3E2
oklch(93.7% 0.029 20.3)
-
Step 200
200
#FCCBC9
oklch(88.4% 0.056 21)
-
Step 300
300
#FAA7A5
oklch(80.9% 0.099 21)
-
Step 400
400
#F37374
oklch(70.7% 0.158 21.5)
-
Step 500
500
#EB4450
oklch(63.2% 0.203 21.4)
-
Step 600
600 (this color)
#D91237
oklch(56.4% 0.22 21.1)
-
Step 700
700
#B6002A
oklch(49.1% 0.197 21.1)
-
Step 800
800
#960422
oklch(42.7% 0.169 21.1)
-
Step 900
900
#781620
oklch(37.6% 0.132 21.4)
-
Step 950
950
#471013
oklch(27% 0.083 21.8)
#D91237 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) | #5B5436 | 0.245 |
| Deuteranopia (no green cones) | #897C30 | 0.223 |
| Tritanopia (no blue cones) | #EF0026 | 0.045 |
| Achromatopsia (no color) | #6E6E6E | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D91237
#D91237
oklch(56.4% 0.22 21.1)
- #00868D
#00868D
oklch(56.4% 0.096 201.3)
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 #D91237, closest first.
No curated palette has a color within ΔE 0.04 of #D91237.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.008
- Cherry #CF0234 ΔE 0.024
- Lipstick #D5174E ΔE 0.029
- Ruby #CA0147 ΔE 0.042
- Red Pantone #EF233C ΔE 0.050
- Imperial Red #E63946 ΔE 0.050
- Lipstick Red #C0022F ΔE 0.055
- Cerise #DE0C62 ΔE 0.057
Use #D91237 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.