#D31010
Closest named color: Cherry (#CF0234). oklch(54.9% 0.219 28.6), rgb(211, 16, 16).
Aa
White text reads best on this color (5.45:1).
About this color
#D31010 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.219 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.032 away. White text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.219) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.85:1 |
| White text | 5.45:1 |
Values
| HEX | #D31010 |
| RGB | rgb(211, 16, 16) |
| HSL | hsl(0, 86%, 45%) |
| OKLCH | oklch(54.9% 0.219 28.6) |
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 #D31010 | 5.45:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #D31010 | 3.85:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #D31010 text on white | 5.45:1 | AA | Lc 74.7 | Content text, not long reading |
| #D31010 text on black | 3.85:1 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FBCCC5
oklch(88.4% 0.054 28.1)
-
Step 300
300
#FAA89C
oklch(80.8% 0.099 28.6)
-
Step 400
400
#F37566
oklch(70.7% 0.158 28.6)
-
Step 500
500
#EA473B
oklch(63% 0.202 28.4)
-
Step 600
600 (this color)
#D31010
oklch(54.9% 0.219 28.6)
-
Step 700
700
#B80005
oklch(49.2% 0.201 28.7)
-
Step 800
800
#960B0A
oklch(42.7% 0.169 28.6)
-
Step 900
900
#781813
oklch(37.6% 0.131 28.3)
-
Step 950
950
#47110C
oklch(27% 0.083 29)
#D31010 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) | #5B4F09 | 0.239 |
| Deuteranopia (no green cones) | #877800 | 0.215 |
| Tritanopia (no blue cones) | #E90016 | 0.044 |
| Achromatopsia (no color) | #696969 | 0.221 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D31010
#D31010
oklch(54.9% 0.219 28.6)
- #00808E
#00808E
oklch(54.9% 0.094 208.2)
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 #D31010, closest first.
No curated palette has a color within ΔE 0.04 of #D31010.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.032
- Crimson #DC143C ΔE 0.040
- Scarlet #BE0119 ΔE 0.047
- Lipstick Red #C0022F ΔE 0.050
- Lipstick #D5174E ΔE 0.058
- Ruby #CA0147 ΔE 0.059
- Dull Red #BB3F3F ΔE 0.061
- Sinopia #BB3E03 ΔE 0.061
Use #D31010 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.