#D3181F
Closest named color: Cherry (#CF0234). oklch(55.3% 0.215 27), rgb(211, 24, 31).
Aa
White text reads best on this color (5.35:1).
About this color
#D3181F is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.215 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.028 away. White text reads best on it, at 5.35:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.215) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.92:1 |
| White text | 5.35:1 |
Values
| HEX | #D3181F |
| RGB | rgb(211, 24, 31) |
| HSL | hsl(358, 80%, 46%) |
| OKLCH | oklch(55.3% 0.215 27) |
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 #D3181F | 5.35:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #D3181F | 3.92:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #D3181F text on white | 5.35:1 | AA | Lc 74.4 | Content text, not long reading |
| #D3181F text on black | 3.92:1 | AA large text | Lc -27.3 | 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
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FBCCC6
oklch(88.4% 0.054 26.7)
-
Step 300
300
#F9A99F
oklch(81% 0.096 27.2)
-
Step 400
400
#F2766A
oklch(70.8% 0.155 27.3)
-
Step 500
500
#E94942
oklch(63.2% 0.198 26.9)
-
Step 600
600 (this color)
#D3181F
oklch(55.3% 0.215 27)
-
Step 700
700
#B70112
oklch(49.1% 0.2 27)
-
Step 800
800
#950E13
oklch(42.7% 0.166 26.9)
-
Step 900
900
#771917
oklch(37.6% 0.129 26.9)
-
Step 950
950
#46110F
oklch(26.9% 0.082 26.3)
#D3181F 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) | #5C511C | 0.235 |
| Deuteranopia (no green cones) | #877812 | 0.212 |
| Tritanopia (no blue cones) | #E9001F | 0.043 |
| Achromatopsia (no color) | #6B6B6B | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D3181F
#D3181F
oklch(55.3% 0.215 27)
- #00818E
#00818E
oklch(55.1% 0.095 207.2)
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 #D3181F, closest first.
No curated palette has a color within ΔE 0.04 of #D3181F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.028
- Crimson #DC143C ΔE 0.033
- Lipstick Red #C0022F ΔE 0.049
- Scarlet #BE0119 ΔE 0.049
- Lipstick #D5174E ΔE 0.051
- Ruby #CA0147 ΔE 0.053
- Dull Red #BB3F3F ΔE 0.056
- Rose Red #BE013C ΔE 0.060
Use #D3181F 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.