#D42937
Closest named color: Crimson (#DC143C). oklch(56.6% 0.204 23.2), rgb(212, 41, 55).
Aa
White text reads best on this color (5.03:1).
About this color
#D42937 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.204 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.021 away. White text reads best on it, at 5.03:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.204) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #D42937 |
| RGB | rgb(212, 41, 55) |
| HSL | hsl(355, 68%, 50%) |
| OKLCH | oklch(56.6% 0.204 23.2) |
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 #D42937 | 5.03:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #D42937 | 4.17:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #D42937 text on white | 5.03:1 | AA | Lc 73.0 | Content text, not long reading |
| #D42937 text on black | 4.17:1 | AA large text | Lc -28.6 | 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
#FBE3E1
oklch(93.5% 0.027 23.4)
-
Step 200
200
#F9CDC9
oklch(88.5% 0.05 24.2)
-
Step 300
300
#F7A9A5
oklch(80.9% 0.093 22.6)
-
Step 400
400
#EE7774
oklch(70.6% 0.147 23)
-
Step 500
500
#E54D50
oklch(63.1% 0.188 23.2)
-
Step 600
600 (this color)
#D42937
oklch(56.6% 0.204 23.2)
-
Step 700
700
#B41127
oklch(49.2% 0.19 23.1)
-
Step 800
800
#921621
oklch(42.7% 0.157 23.4)
-
Step 900
900
#751C20
oklch(37.6% 0.123 23.1)
-
Step 950
950
#451313
oklch(27% 0.077 23.8)
#D42937 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) | #605836 | 0.223 |
| Deuteranopia (no green cones) | #8A7C31 | 0.204 |
| Tritanopia (no blue cones) | #E90030 | 0.041 |
| Achromatopsia (no color) | #6F6F6F | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D42937
#D42937
oklch(56.6% 0.204 23.2)
- #008690
#008690
oklch(56.5% 0.096 204)
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 #D42937, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.021
- Cherry #CF0234 ΔE 0.030
- Lipstick #D5174E ΔE 0.037
- Faded Red #D3494E ΔE 0.044
- Imperial Red #E63946 ΔE 0.046
- Ruby #CA0147 ΔE 0.048
- Dull Red #BB3F3F ΔE 0.050
- Red Pantone #EF233C ΔE 0.053
Use #D42937 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.