#D91F18
Closest named color: Crimson (#DC143C). oklch(56.7% 0.218 28.9), rgb(217, 31, 24).
Aa
White text reads best on this color (5.04:1).
About this color
#D91F18 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.218 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.034 away. White text reads best on it, at 5.04:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.218) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.15:1 |
| White text | 5.04:1 |
Values
| HEX | #D91F18 |
| RGB | rgb(217, 31, 24) |
| HSL | hsl(2, 80%, 47%) |
| OKLCH | oklch(56.7% 0.218 28.9) |
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 #D91F18 | 5.04:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #D91F18 | 4.15:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #D91F18 text on white | 5.04:1 | AA | Lc 72.8 | Content text, not long reading |
| #D91F18 text on black | 4.15:1 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCCC5
oklch(88.4% 0.054 28.1)
-
Step 300
300
#F9A99C
oklch(80.9% 0.097 29.5)
-
Step 400
400
#F27666
oklch(70.7% 0.156 29.1)
-
Step 500
500
#EA483B
oklch(63.1% 0.201 28.7)
-
Step 600
600 (this color)
#D91F18
oklch(56.7% 0.218 28.9)
-
Step 700
700
#B80003
oklch(49.2% 0.201 28.9)
-
Step 800
800
#950D09
oklch(42.6% 0.167 29)
-
Step 900
900
#781912
oklch(37.7% 0.131 29.1)
-
Step 950
950
#47110C
oklch(27% 0.083 29)
#D91F18 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) | #605512 | 0.238 |
| Deuteranopia (no green cones) | #8D7D04 | 0.213 |
| Tritanopia (no blue cones) | #F00021 | 0.045 |
| Achromatopsia (no color) | #6F6F6F | 0.219 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D91F18
#D91F18
oklch(56.7% 0.218 28.9)
- #008695
#008695
oklch(56.7% 0.098 208.5)
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 #D91F18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.034
- Cherry #CF0234 ΔE 0.041
- Tomato Red #EC2D01 ΔE 0.045
- Imperial Red #E63946 ΔE 0.053
- Red Pantone #EF233C ΔE 0.054
- Lipstick #D5174E ΔE 0.057
- Faded Red #D3494E ΔE 0.059
- Cherry Red #F7022A ΔE 0.060
Use #D91F18 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.