#A0231B
Closest named color: Burnt Red (#9F2305). oklch(46.3% 0.162 28.8), rgb(160, 35, 27).
Aa
White text reads best on this color (7.63:1).
About this color
#A0231B is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.162 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Red (#9F2305), ΔE 0.014 away. White text reads best on it, at 7.63:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Burnt Red (#9F2305) |
| Black text | 2.75:1 |
| White text | 7.63:1 |
Values
| HEX | #A0231B |
| RGB | rgb(160, 35, 27) |
| HSL | hsl(4, 71%, 37%) |
| OKLCH | oklch(46.3% 0.162 28.8) |
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 #A0231B | 7.63:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #A0231B | 2.75:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #A0231B text on white | 7.63:1 | AAA | Lc 85.1 | Fine for body text |
| #A0231B text on black | 2.75:1 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC9
oklch(88.5% 0.044 28.5)
-
Step 300
300
#EFAEA4
oklch(80.9% 0.078 28.7)
-
Step 400
400
#E48073
oklch(70.6% 0.126 28.4)
-
Step 500
500
#D95C4E
oklch(63.1% 0.16 28.8)
-
Step 600
600
#C53D31
oklch(55.7% 0.175 28.9)
-
Step 700
700 (this color)
#A0231B
oklch(46.3% 0.162 28.8)
-
Step 800
800
#8A271F
oklch(42.7% 0.135 28.7)
-
Step 900
900
#6F261F
oklch(37.7% 0.105 28.5)
-
Step 950
950
#411713
oklch(26.9% 0.066 27.8)
#A0231B 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) | #4A4218 | 0.175 |
| Deuteranopia (no green cones) | #695D14 | 0.158 |
| Tritanopia (no blue cones) | #B10023 | 0.040 |
| Achromatopsia (no color) | #535353 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A0231B
#A0231B
oklch(46.3% 0.162 28.8)
- #006571
#006571
oklch(46.4% 0.08 208.9)
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 #A0231B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Red #9F2305 ΔE 0.014
- Auburn #9B2226 ΔE 0.016
- Brown #A52A2A ΔE 0.020
- Rust Red #AA2704 ΔE 0.027
- Rufous #AE2012 ΔE 0.029
- Brick #A03623 ΔE 0.029
- Carmine #9D0216 ΔE 0.030
- Brown Red #922B05 ΔE 0.034
Use #A0231B 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.