#D51B32
Closest named color: Crimson (#DC143C). oklch(56% 0.214 23), rgb(213, 27, 50).
Aa
White text reads best on this color (5.20:1).
About this color
#D51B32 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.214 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.018 away. White text reads best on it, at 5.20:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.214) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #D51B32 |
| RGB | rgb(213, 27, 50) |
| HSL | hsl(353, 78%, 47%) |
| OKLCH | oklch(56% 0.214 23) |
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 #D51B32 | 5.20:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #D51B32 | 4.03:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #D51B32 text on white | 5.20:1 | AA | Lc 73.7 | Content text, not long reading |
| #D51B32 text on black | 4.03:1 | AA large text | Lc -28.0 | 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
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FBCCC9
oklch(88.5% 0.054 22.5)
-
Step 300
300
#F9A8A4
oklch(80.9% 0.096 22.5)
-
Step 400
400
#F17572
oklch(70.7% 0.154 23.2)
-
Step 500
500
#E8484E
oklch(63.1% 0.196 22.8)
-
Step 600
600 (this color)
#D51B32
oklch(56% 0.214 23)
-
Step 700
700
#B70024
oklch(49.2% 0.198 23)
-
Step 800
800
#940D1F
oklch(42.6% 0.164 22.9)
-
Step 900
900
#77191F
oklch(37.7% 0.128 22.8)
-
Step 950
950
#461113
oklch(26.9% 0.081 22.4)
#D51B32 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) | #5C5431 | 0.235 |
| Deuteranopia (no green cones) | #887A2A | 0.214 |
| Tritanopia (no blue cones) | #EB0027 | 0.043 |
| Achromatopsia (no color) | #6D6D6D | 0.215 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D51B32
#D51B32
oklch(56% 0.214 23)
- #00848D
#00848D
oklch(55.9% 0.095 203.2)
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 #D51B32, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.018
- Cherry #CF0234 ΔE 0.021
- Lipstick #D5174E ΔE 0.035
- Ruby #CA0147 ΔE 0.043
- Lipstick Red #C0022F ΔE 0.050
- Imperial Red #E63946 ΔE 0.053
- Faded Red #D3494E ΔE 0.055
- Red Pantone #EF233C ΔE 0.055
Use #D51B32 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.