#D42820
Closest named color: Crimson (#DC143C). oklch(56.3% 0.207 28.7), rgb(212, 40, 32).
Aa
White text reads best on this color (5.09:1).
About this color
#D42820 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.207 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.036 away. White text reads best on it, at 5.09:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.207) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.12:1 |
| White text | 5.09:1 |
Values
| HEX | #D42820 |
| RGB | rgb(212, 40, 32) |
| HSL | hsl(3, 74%, 48%) |
| OKLCH | oklch(56.3% 0.207 28.7) |
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 #D42820 | 5.09:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #D42820 | 4.12:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #D42820 text on white | 5.09:1 | AA | Lc 73.3 | Content text, not long reading |
| #D42820 text on black | 4.12:1 | AA large text | Lc -28.4 | 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
#FCE4E0
oklch(93.7% 0.027 28.9)
-
Step 200
200
#FACDC6
oklch(88.5% 0.052 28.5)
-
Step 300
300
#F7AA9E
oklch(80.9% 0.093 29.1)
-
Step 400
400
#EF7869
oklch(70.7% 0.149 28.8)
-
Step 500
500
#E64D40
oklch(63.1% 0.191 28.6)
-
Step 600
600 (this color)
#D42820
oklch(56.3% 0.207 28.7)
-
Step 700
700
#B5110F
oklch(49.1% 0.193 28.6)
-
Step 800
800
#931611
oklch(42.8% 0.16 28.7)
-
Step 900
900
#761D16
oklch(37.8% 0.124 28.9)
-
Step 950
950
#45130E
oklch(26.9% 0.078 28.9)
#D42820 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) | #61561C | 0.224 |
| Deuteranopia (no green cones) | #8B7B14 | 0.202 |
| Tritanopia (no blue cones) | #EA0029 | 0.045 |
| Achromatopsia (no color) | #6E6E6E | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D42820
#D42820
oklch(56.3% 0.207 28.7)
- #008594
#008594
oklch(56.4% 0.097 208.6)
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 #D42820, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.036
- Cherry #CF0234 ΔE 0.039
- Tomato Red #EC2D01 ΔE 0.052
- Faded Red #D3494E ΔE 0.053
- Dull Red #BB3F3F ΔE 0.053
- Imperial Red #E63946 ΔE 0.054
- Lipstick #D5174E ΔE 0.056
- Sinopia #BB3E03 ΔE 0.057
Use #D42820 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.