#D42D31
Closest named color: Crimson (#DC143C). oklch(56.8% 0.202 25.5), rgb(212, 45, 49).
Aa
White text reads best on this color (4.97:1).
About this color
#D42D31 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.202 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.028 away. White text reads best on it, at 4.97:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.202) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.21:1 |
| White text | 4.97:1 |
Values
| HEX | #D42D31 |
| RGB | rgb(212, 45, 49) |
| HSL | hsl(359, 66%, 50%) |
| OKLCH | oklch(56.8% 0.202 25.5) |
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 #D42D31 | 4.97:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #D42D31 | 4.21:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #D42D31 text on white | 4.97:1 | AA | Lc 72.8 | Content text, not long reading |
| #D42D31 text on black | 4.21:1 | 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
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F9CDC8
oklch(88.5% 0.05 25.7)
-
Step 300
300
#F6AAA2
oklch(80.9% 0.091 25.9)
-
Step 400
400
#EE7970
oklch(70.8% 0.146 25.9)
-
Step 500
500
#E44F4B
oklch(63.1% 0.186 25.5)
-
Step 600
600 (this color)
#D42D31
oklch(56.8% 0.202 25.5)
-
Step 700
700
#B31620
oklch(49.1% 0.188 25.6)
-
Step 800
800
#91181C
oklch(42.6% 0.155 25.6)
-
Step 900
900
#751E1D
oklch(37.8% 0.121 25.7)
-
Step 950
950
#451312
oklch(27% 0.077 24.9)
#D42D31 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) | #62592F | 0.220 |
| Deuteranopia (no green cones) | #8B7D2A | 0.201 |
| Tritanopia (no blue cones) | #EA0031 | 0.044 |
| Achromatopsia (no color) | #707070 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D42D31
#D42D31
oklch(56.8% 0.202 25.5)
- #008793
#008793
oklch(56.9% 0.097 205.8)
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 #D42D31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.028
- Cherry #CF0234 ΔE 0.036
- Faded Red #D3494E ΔE 0.042
- Lipstick #D5174E ΔE 0.045
- Imperial Red #E63946 ΔE 0.046
- Dull Red #BB3F3F ΔE 0.049
- Red Pantone #EF233C ΔE 0.054
- Tomato Red #EC2D01 ΔE 0.054
Use #D42D31 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.