#D51833
Closest named color: Crimson (#DC143C). oklch(55.8% 0.215 22.4), rgb(213, 24, 51).
Aa
White text reads best on this color (5.23:1).
About this color
#D51833 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.215 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.017 away. White text reads best on it, at 5.23:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.215) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.00:1 |
| White text | 5.23:1 |
Values
| HEX | #D51833 |
| RGB | rgb(213, 24, 51) |
| HSL | hsl(351, 80%, 46%) |
| OKLCH | oklch(55.8% 0.215 22.4) |
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 #D51833 | 5.23:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #D51833 | 4.00:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #D51833 text on white | 5.23:1 | AA | Lc 73.8 | Content text, not long reading |
| #D51833 text on black | 4.00:1 | AA large text | Lc -27.9 | 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
#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
#F27473
oklch(70.7% 0.156 22.3)
-
Step 500
500
#E9474F
oklch(63.1% 0.198 22.3)
-
Step 600
600 (this color)
#D51833
oklch(55.8% 0.215 22.4)
-
Step 700
700
#B60026
oklch(49% 0.198 22.3)
-
Step 800
800
#950B20
oklch(42.7% 0.166 22.4)
-
Step 900
900
#77181F
oklch(37.6% 0.129 22.5)
-
Step 950
950
#461113
oklch(26.9% 0.081 22.4)
#D51833 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) | #5B5332 | 0.237 |
| Deuteranopia (no green cones) | #887A2B | 0.216 |
| Tritanopia (no blue cones) | #EB0026 | 0.043 |
| Achromatopsia (no color) | #6C6C6C | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D51833
#D51833
oklch(55.8% 0.215 22.4)
- #00848C
#00848C
oklch(55.8% 0.095 202.3)
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 #D51833, closest first.
No curated palette has a color within ΔE 0.04 of #D51833.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.017
- Cherry #CF0234 ΔE 0.019
- Lipstick #D5174E ΔE 0.033
- Ruby #CA0147 ΔE 0.041
- Lipstick Red #C0022F ΔE 0.049
- Imperial Red #E63946 ΔE 0.054
- Rose Red #BE013C ΔE 0.056
- Scarlet #BE0119 ΔE 0.056
Use #D51833 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.