#A90D1F
Closest named color: Rufous (#AE2012). oklch(46.8% 0.183 24.4), rgb(169, 13, 31).
Aa
White text reads best on this color (7.59:1).
About this color
#A90D1F is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.183 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Rufous (#AE2012), ΔE 0.027 away. White text reads best on it, at 7.59:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Rufous (#AE2012) |
| Black text | 2.76:1 |
| White text | 7.59:1 |
Values
| HEX | #A90D1F |
| RGB | rgb(169, 13, 31) |
| HSL | hsl(353, 86%, 36%) |
| OKLCH | oklch(46.8% 0.183 24.4) |
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 #A90D1F | 7.59:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #A90D1F | 2.76:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #A90D1F text on white | 7.59:1 | AAA | Lc 84.2 | Fine for body text |
| #A90D1F text on black | 2.76:1 | Fails | Lc -17.7 | 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
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F8CDC9
oklch(88.4% 0.049 24.3)
-
Step 300
300
#F5AAA4
oklch(80.8% 0.089 24.3)
-
Step 400
400
#EC7A74
oklch(70.8% 0.142 24.4)
-
Step 500
500
#E25150
oklch(63.1% 0.181 24.2)
-
Step 600
600
#CD2C33
oklch(55.5% 0.196 24.5)
-
Step 700
700 (this color)
#A90D1F
oklch(46.8% 0.183 24.4)
-
Step 800
800
#901B21
oklch(42.7% 0.152 24.3)
-
Step 900
900
#741F20
oklch(37.8% 0.119 24.3)
-
Step 950
950
#441413
oklch(27% 0.075 24.6)
#A90D1F 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) | #463F1E | 0.202 |
| Deuteranopia (no green cones) | #6B5F17 | 0.182 |
| Tritanopia (no blue cones) | #BB0017 | 0.037 |
| Achromatopsia (no color) | #545454 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A90D1F
#A90D1F
oklch(46.8% 0.183 24.4)
- #00676F
#00676F
oklch(46.8% 0.08 204.1)
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 #A90D1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rufous #AE2012 ΔE 0.027
- Brown #A52A2A ΔE 0.027
- Carmine #9D0216 ΔE 0.029
- Auburn #9B2226 ΔE 0.029
- Rouge #AB1239 ΔE 0.030
- Firebrick #B22222 ΔE 0.030
- Burnt Red #9F2305 ΔE 0.034
- Rust Red #AA2704 ΔE 0.035
Use #A90D1F 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.