#A31A12
Closest named color: Burnt Red (#9F2305). oklch(46.1% 0.172 29.2), rgb(163, 26, 18).
Aa
White text reads best on this color (7.73:1).
About this color
#A31A12 is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.172 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Red (#9F2305), ΔE 0.015 away. White text reads best on it, at 7.73:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Burnt Red (#9F2305) |
| Black text | 2.71:1 |
| White text | 7.73:1 |
Values
| HEX | #A31A12 |
| RGB | rgb(163, 26, 18) |
| HSL | hsl(3, 80%, 35%) |
| OKLCH | oklch(46.1% 0.172 29.2) |
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 #A31A12 | 7.73:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #A31A12 | 2.71:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #A31A12 text on white | 7.73:1 | AAA | Lc 85.1 | Fine for body text |
| #A31A12 text on black | 2.71:1 | Fails | Lc -16.9 | 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 700.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F6CEC8
oklch(88.4% 0.046 28)
-
Step 300
300
#F2ADA2
oklch(81% 0.083 29.1)
-
Step 400
400
#E87E6F
oklch(70.8% 0.134 29.3)
-
Step 500
500
#DD5848
oklch(63.1% 0.17 29.5)
-
Step 600
600
#C9362A
oklch(55.6% 0.186 29.1)
-
Step 700
700 (this color)
#A31A12
oklch(46.1% 0.172 29.2)
-
Step 800
800
#8D231A
oklch(42.8% 0.143 29.2)
-
Step 900
900
#71231B
oklch(37.6% 0.112 29.2)
-
Step 950
950
#431611
oklch(27.1% 0.071 28.9)
#A31A12 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) | #48400E | 0.187 |
| Deuteranopia (no green cones) | #695D07 | 0.169 |
| Tritanopia (no blue cones) | #B4001B | 0.036 |
| Achromatopsia (no color) | #535353 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A31A12
#A31A12
oklch(46.1% 0.172 29.2)
- #006470
#006470
oklch(46.1% 0.079 209.1)
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 #A31A12, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Red #9F2305 ΔE 0.015
- Auburn #9B2226 ΔE 0.022
- Brown #A52A2A ΔE 0.025
- Carmine #9D0216 ΔE 0.026
- Rufous #AE2012 ΔE 0.026
- Rust Red #AA2704 ΔE 0.027
- Deep Red #9A0200 ΔE 0.030
- Blood Red #980002 ΔE 0.035
Use #A31A12 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.