#D81F37
Closest named color: Crimson (#DC143C). oklch(56.8% 0.214 22.2), rgb(216, 31, 55).
Aa
White text reads best on this color (5.03:1).
About this color
#D81F37 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.214 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.012 away. White text reads best on it, at 5.03:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.214) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #D81F37 |
| RGB | rgb(216, 31, 55) |
| HSL | hsl(352, 75%, 48%) |
| OKLCH | oklch(56.8% 0.214 22.2) |
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 #D81F37 | 5.03:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #D81F37 | 4.17:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #D81F37 text on white | 5.03:1 | AA | Lc 72.8 | Content text, not long reading |
| #D81F37 text on black | 4.17:1 | AA large text | Lc -28.9 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FBCCC9
oklch(88.5% 0.054 22.5)
-
Step 300
300
#F9A8A4
oklch(80.9% 0.096 22.5)
-
Step 400
400
#F17574
oklch(70.7% 0.153 22.2)
-
Step 500
500
#E84850
oklch(63.1% 0.196 22.1)
-
Step 600
600 (this color)
#D81F37
oklch(56.8% 0.214 22.2)
-
Step 700
700
#B60027
oklch(49% 0.197 22)
-
Step 800
800
#940C21
oklch(42.6% 0.165 22.1)
-
Step 900
900
#771920
oklch(37.7% 0.128 22.2)
-
Step 950
950
#461113
oklch(26.9% 0.081 22.4)
#D81F37 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) | #5E5636 | 0.236 |
| Deuteranopia (no green cones) | #8A7D30 | 0.216 |
| Tritanopia (no blue cones) | #EE002B | 0.042 |
| Achromatopsia (no color) | #6F6F6F | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D81F37
#D81F37
oklch(56.8% 0.214 22.2)
- #00878F
#00878F
oklch(56.8% 0.097 202.1)
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 #D81F37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.012
- Cherry #CF0234 ΔE 0.028
- Lipstick #D5174E ΔE 0.032
- Imperial Red #E63946 ΔE 0.045
- Ruby #CA0147 ΔE 0.046
- Red Pantone #EF233C ΔE 0.048
- Faded Red #D3494E ΔE 0.050
- Lipstick Red #C0022F ΔE 0.057
Use #D81F37 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.