#D21131
Closest named color: Cherry (#CF0234). oklch(55% 0.215 22.2), rgb(210, 17, 49).
Aa
White text reads best on this color (5.43:1).
About this color
#D21131 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.215 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.012 away. White text reads best on it, at 5.43:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.215) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #D21131 |
| RGB | rgb(210, 17, 49) |
| HSL | hsl(350, 85%, 45%) |
| OKLCH | oklch(55% 0.215 22.2) |
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 #D21131 | 5.43:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #D21131 | 3.86:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #D21131 text on white | 5.43:1 | AA | Lc 74.8 | Content text, not long reading |
| #D21131 text on black | 3.86:1 | AA large text | Lc -27.0 | 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
#F27473
oklch(70.7% 0.156 22.3)
-
Step 500
500
#E9474F
oklch(63.1% 0.198 22.3)
-
Step 600
600 (this color)
#D21131
oklch(55% 0.215 22.2)
-
Step 700
700
#B60026
oklch(49% 0.198 22.3)
-
Step 800
800
#950B20
oklch(42.7% 0.166 22.4)
-
Step 900
900
#771820
oklch(37.6% 0.129 21.9)
-
Step 950
950
#461113
oklch(26.9% 0.081 22.4)
#D21131 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) | #585130 | 0.239 |
| Deuteranopia (no green cones) | #857729 | 0.216 |
| Tritanopia (no blue cones) | #E80022 | 0.045 |
| Achromatopsia (no color) | #6A6A6A | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D21131
#D21131
oklch(55% 0.215 22.2)
- #008189
#008189
oklch(54.9% 0.093 202.5)
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 #D21131, closest first.
No curated palette has a color within ΔE 0.04 of #D21131.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.012
- Crimson #DC143C ΔE 0.024
- Lipstick #D5174E ΔE 0.034
- Ruby #CA0147 ΔE 0.036
- Lipstick Red #C0022F ΔE 0.041
- Rose Red #BE013C ΔE 0.048
- Scarlet #BE0119 ΔE 0.048
- Dull Red #BB3F3F ΔE 0.056
Use #D21131 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.