#D31D09
Closest named color: Cherry (#CF0234). oklch(55.4% 0.214 30.4), rgb(211, 29, 9).
Aa
White text reads best on this color (5.31:1).
About this color
#D31D09 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.214 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.040 away. White text reads best on it, at 5.31:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.214) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.94:1 |
| White text | 5.31:1 |
Values
| HEX | #D31D09 |
| RGB | rgb(211, 29, 9) |
| HSL | hsl(6, 92%, 43%) |
| OKLCH | oklch(55.4% 0.214 30.4) |
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 #D31D09 | 5.31:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #D31D09 | 3.94:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #D31D09 text on white | 5.31:1 | AA | Lc 74.3 | Content text, not long reading |
| #D31D09 text on black | 3.94:1 | AA large text | Lc -27.4 | 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
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99B
oklch(80.9% 0.097 30.3)
-
Step 400
400
#F17764
oklch(70.7% 0.154 30.5)
-
Step 500
500
#E84B37
oklch(63.1% 0.197 30.5)
-
Step 600
600 (this color)
#D31D09
oklch(55.4% 0.214 30.4)
-
Step 700
700
#B51000
oklch(49% 0.195 30.4)
-
Step 800
800
#941104
oklch(42.6% 0.165 30.4)
-
Step 900
900
#771B10
oklch(37.7% 0.128 30.6)
-
Step 950
950
#46120B
oklch(26.9% 0.081 30.7)
#D31D09 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) | #5E5200 | 0.232 |
| Deuteranopia (no green cones) | #897900 | 0.207 |
| Tritanopia (no blue cones) | #E9001D | 0.045 |
| Achromatopsia (no color) | #6B6B6B | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D31D09
#D31D09
oklch(55.4% 0.214 30.4)
- #008192
#008192
oklch(55.3% 0.096 210.8)
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 #D31D09, closest first.
No curated palette has a color within ΔE 0.04 of #D31D09.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.040
- Crimson #DC143C ΔE 0.044
- Scarlet #BE0119 ΔE 0.052
- Sinopia #BB3E03 ΔE 0.055
- Lipstick Red #C0022F ΔE 0.056
- Tomato Red #EC2D01 ΔE 0.057
- Dull Red #BB3F3F ΔE 0.059
- Brick Orange #C14A09 ΔE 0.063
Use #D31D09 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.