#D21638
Closest named color: Cherry (#CF0234). oklch(55.3% 0.213 20.6), rgb(210, 22, 56).
Aa
White text reads best on this color (5.36:1).
About this color
#D21638 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.213 and its hue 21°. 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 5.36:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.213) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.91:1 |
| White text | 5.36:1 |
Values
| HEX | #D21638 |
| RGB | rgb(210, 22, 56) |
| HSL | hsl(349, 81%, 45%) |
| OKLCH | oklch(55.3% 0.213 20.6) |
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 #D21638 | 5.36:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #D21638 | 3.91:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #D21638 text on white | 5.36:1 | AA | Lc 74.5 | Content text, not long reading |
| #D21638 text on black | 3.91:1 | AA large text | Lc -27.2 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FBCCCA
oklch(88.5% 0.054 21.1)
-
Step 300
300
#F9A8A6
oklch(81% 0.096 21)
-
Step 400
400
#F17577
oklch(70.8% 0.153 20.8)
-
Step 500
500
#E84854
oklch(63.2% 0.196 20.7)
-
Step 600
600 (this color)
#D21638
oklch(55.3% 0.213 20.6)
-
Step 700
700
#B6002C
oklch(49.1% 0.197 20.5)
-
Step 800
800
#940D25
oklch(42.7% 0.164 20.6)
-
Step 900
900
#771923
oklch(37.8% 0.128 20.4)
-
Step 950
950
#461115
oklch(27% 0.081 20.2)
#D21638 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) | #585237 | 0.237 |
| Deuteranopia (no green cones) | #857831 | 0.215 |
| Tritanopia (no blue cones) | #E70027 | 0.043 |
| Achromatopsia (no color) | #6B6B6B | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D21638
#D21638
oklch(55.3% 0.213 20.6)
- #008288
#008288
oklch(55.2% 0.094 200.5)
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 #D21638, closest first.
No curated palette has a color within ΔE 0.04 of #D21638.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.012
- Crimson #DC143C ΔE 0.021
- Lipstick #D5174E ΔE 0.028
- Ruby #CA0147 ΔE 0.032
- Lipstick Red #C0022F ΔE 0.042
- Rose Red #BE013C ΔE 0.048
- Scarlet #BE0119 ΔE 0.052
- Dull Red #BB3F3F ΔE 0.055
Use #D21638 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.