#A90E2B
Closest named color: Rouge (#AB1239). oklch(47% 0.182 20.5), rgb(169, 14, 43).
Aa
White text reads best on this color (7.54:1).
About this color
#A90E2B is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.182 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.018 away. White text reads best on it, at 7.54:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #A90E2B |
| RGB | rgb(169, 14, 43) |
| HSL | hsl(349, 85%, 36%) |
| OKLCH | oklch(47% 0.182 20.5) |
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 #A90E2B | 7.54:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #A90E2B | 2.78:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #A90E2B text on white | 7.54:1 | AAA | Lc 84.1 | Fine for body text |
| #A90E2B text on black | 2.78:1 | Fails | Lc -17.9 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FBE4E3
oklch(93.7% 0.025 20.6)
-
Step 200
200
#F8CDCB
oklch(88.5% 0.049 21.2)
-
Step 300
300
#F4AAA9
oklch(80.8% 0.088 20)
-
Step 400
400
#EB797B
oklch(70.6% 0.141 20.2)
-
Step 500
500
#E15159
oklch(63.1% 0.179 20.7)
-
Step 600
600
#CD2B3F
oklch(55.6% 0.196 20.5)
-
Step 700
700 (this color)
#A90E2B
oklch(47% 0.182 20.5)
-
Step 800
800
#8F1B29
oklch(42.6% 0.15 20.6)
-
Step 900
900
#731F26
oklch(37.7% 0.117 20.3)
-
Step 950
950
#441416
oklch(27% 0.074 21.1)
#A90E2B 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) | #45402B | 0.203 |
| Deuteranopia (no green cones) | #6A5F25 | 0.183 |
| Tritanopia (no blue cones) | #BA001D | 0.037 |
| Achromatopsia (no color) | #545454 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A90E2B
#A90E2B
oklch(47% 0.182 20.5)
- #00686D
#00686D
oklch(47% 0.08 200.6)
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 #A90E2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.018
- Brown #A52A2A ΔE 0.029
- Auburn #9B2226 ΔE 0.032
- Firebrick #B22222 ΔE 0.034
- Carmine #9D0216 ΔE 0.034
- Rufous #AE2012 ΔE 0.035
- Cranberry #9E003A ΔE 0.037
- Burnt Red #9F2305 ΔE 0.044
Use #A90E2B 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.