#D42B24
Closest named color: Crimson (#DC143C). oklch(56.6% 0.205 28.4), rgb(212, 43, 36).
Aa
White text reads best on this color (5.03:1).
About this color
#D42B24 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.205 and its hue 28°. 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 5.03:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.205) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #D42B24 |
| RGB | rgb(212, 43, 36) |
| HSL | hsl(2, 71%, 49%) |
| OKLCH | oklch(56.6% 0.205 28.4) |
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 #D42B24 | 5.03:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #D42B24 | 4.17:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #D42B24 text on white | 5.03:1 | AA | Lc 73.1 | Content text, not long reading |
| #D42B24 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
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F9CDC6
oklch(88.4% 0.051 28.7)
-
Step 300
300
#F7AA9F
oklch(80.9% 0.093 28.3)
-
Step 400
400
#EE796B
oklch(70.7% 0.147 28.4)
-
Step 500
500
#E54E42
oklch(63% 0.189 28.2)
-
Step 600
600 (this color)
#D42B24
oklch(56.6% 0.205 28.4)
-
Step 700
700
#B41412
oklch(49.1% 0.191 28.4)
-
Step 800
800
#921713
oklch(42.7% 0.158 28.3)
-
Step 900
900
#751D17
oklch(37.6% 0.123 28.4)
-
Step 950
950
#45130F
oklch(26.9% 0.078 28)
#D42B24 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) | #625721 | 0.221 |
| Deuteranopia (no green cones) | #8B7C1A | 0.201 |
| Tritanopia (no blue cones) | #EA002C | 0.045 |
| Achromatopsia (no color) | #6F6F6F | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D42B24
#D42B24
oklch(56.6% 0.205 28.4)
- #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 #D42B24, 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 0.040
- Faded Red #D3494E ΔE 0.049
- Tomato Red #EC2D01 ΔE 0.051
- Imperial Red #E63946 ΔE 0.052
- Dull Red #BB3F3F ΔE 0.052
- Lipstick #D5174E ΔE 0.055
- Sinopia #BB3E03 ΔE 0.057
Use #D42B24 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.