#D91B38
Closest named color: Crimson (#DC143C). oklch(56.8% 0.217 21.6), rgb(217, 27, 56).
Aa
White text reads best on this color (5.04:1).
About this color
#D91B38 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.217 and its hue 22°. 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 5.04:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.217) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.16:1 |
| White text | 5.04:1 |
Values
| HEX | #D91B38 |
| RGB | rgb(217, 27, 56) |
| HSL | hsl(351, 78%, 48%) |
| OKLCH | oklch(56.8% 0.217 21.6) |
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 #D91B38 | 5.04:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #D91B38 | 4.16:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #D91B38 text on white | 5.04:1 | AA | Lc 72.7 | Content text, not long reading |
| #D91B38 text on black | 4.16:1 | AA large text | Lc -29.0 | 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
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FBCCC9
oklch(88.5% 0.054 22.5)
-
Step 300
300
#F9A7A5
oklch(80.8% 0.098 21)
-
Step 400
400
#F27474
oklch(70.7% 0.156 21.8)
-
Step 500
500
#E94650
oklch(63.1% 0.199 21.7)
-
Step 600
600 (this color)
#D91B38
oklch(56.8% 0.217 21.6)
-
Step 700
700
#B60029
oklch(49% 0.197 21.4)
-
Step 800
800
#950922
oklch(42.7% 0.167 21.4)
-
Step 900
900
#781720
oklch(37.7% 0.131 21.7)
-
Step 950
950
#471013
oklch(27% 0.083 21.8)
#D91B38 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) | #5D5637 | 0.240 |
| Deuteranopia (no green cones) | #8A7D31 | 0.219 |
| Tritanopia (no blue cones) | #EF002A | 0.043 |
| Achromatopsia (no color) | #6F6F6F | 0.218 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D91B38
#D91B38
oklch(56.8% 0.217 21.6)
- #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 #D91B38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.008
- Cherry #CF0234 ΔE 0.027
- Lipstick #D5174E ΔE 0.030
- Ruby #CA0147 ΔE 0.045
- Imperial Red #E63946 ΔE 0.045
- Red Pantone #EF233C ΔE 0.047
- Faded Red #D3494E ΔE 0.052
- Cerise #DE0C62 ΔE 0.058
Use #D91B38 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.