#D31F00
Closest named color: Cherry (#CF0234). oklch(55.5% 0.214 31.4), rgb(211, 31, 0).
Aa
White text reads best on this color (5.29:1).
About this color
#D31F00 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.214 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.043 away. White text reads best on it, at 5.29:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.214) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #D31F00 |
| RGB | rgb(211, 31, 0) |
| HSL | hsl(9, 100%, 41%) |
| OKLCH | oklch(55.5% 0.214 31.4) |
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 #D31F00 | 5.29:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #D31F00 | 3.96:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #D31F00 text on white | 5.29:1 | AA | Lc 74.2 | Content text, not long reading |
| #D31F00 text on black | 3.96:1 | AA large text | Lc -27.5 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F8AA9A
oklch(80.9% 0.096 32)
-
Step 400
400
#F17762
oklch(70.7% 0.154 31.3)
-
Step 500
500
#E84C34
oklch(63.1% 0.196 31.5)
-
Step 600
600 (this color)
#D31F00
oklch(55.5% 0.214 31.4)
-
Step 700
700
#B31900
oklch(49.1% 0.189 31.4)
-
Step 800
800
#941200
oklch(42.6% 0.165 31.3)
-
Step 900
900
#771B0E
oklch(37.7% 0.128 31.3)
-
Step 950
950
#46120A
oklch(26.9% 0.081 31.5)
#D31F00 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) | #5F5200 | 0.229 |
| Deuteranopia (no green cones) | #897900 | 0.204 |
| Tritanopia (no blue cones) | #E9001D | 0.046 |
| Achromatopsia (no color) | #6B6B6B | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D31F00
#D31F00
oklch(55.5% 0.214 31.4)
- #008193
#008193
oklch(55.4% 0.096 211.7)
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 #D31F00, closest first.
No curated palette has a color within ΔE 0.04 of #D31F00.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.043
- Crimson #DC143C ΔE 0.047
- Sinopia #BB3E03 ΔE 0.053
- Scarlet #BE0119 ΔE 0.054
- Tomato Red #EC2D01 ΔE 0.056
- Lipstick Red #C0022F ΔE 0.059
- Dull Red #BB3F3F ΔE 0.060
- Brick Orange #C14A09 ΔE 0.060
Use #D31F00 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.