#A90F3A
Closest named color: Rouge (#AB1239). oklch(47.3% 0.181 14.6), rgb(169, 15, 58).
Aa
White text reads best on this color (7.45:1).
About this color
#A90F3A is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.181 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.006 away. White text reads best on it, at 7.45:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.181) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.81:1 |
| White text | 7.45:1 |
Values
| HEX | #A90F3A |
| RGB | rgb(169, 15, 58) |
| HSL | hsl(343, 84%, 36%) |
| OKLCH | oklch(47.3% 0.181 14.6) |
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 #A90F3A | 7.45:1 | AAA | Lc -88.8 | Fine for body text |
| Black text on #A90F3A | 2.81:1 | Fails | Lc 20.2 | Dividers and decoration only |
| #A90F3A text on white | 7.45:1 | AAA | Lc 83.9 | Fine for body text |
| #A90F3A text on black | 2.81:1 | Fails | Lc -18.1 | 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
#FDF2F3
oklch(97% 0.012 11)
-
Step 100
100
#FAE3E4
oklch(93.5% 0.025 14.6)
-
Step 200
200
#F8CDCF
oklch(88.6% 0.049 15)
-
Step 300
300
#F4AAAF
oklch(81% 0.087 14.7)
-
Step 400
400
#EA7985
oklch(70.7% 0.14 14.6)
-
Step 500
500
#E05067
oklch(63.1% 0.179 14.4)
-
Step 600
600
#CB2A4E
oklch(55.5% 0.195 14.5)
-
Step 700
700 (this color)
#A90F3A
oklch(47.3% 0.181 14.6)
-
Step 800
800
#8E1A34
oklch(42.6% 0.15 14.5)
-
Step 900
900
#731E2D
oklch(37.7% 0.118 14.8)
-
Step 950
950
#44131B
oklch(27% 0.075 14)
#A90F3A 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) | #43413A | 0.204 |
| Deuteranopia (no green cones) | #696036 | 0.185 |
| Tritanopia (no blue cones) | #BA0024 | 0.043 |
| Achromatopsia (no color) | #555555 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A90F3A
#A90F3A
oklch(47.3% 0.181 14.6)
- #006969
#006969
oklch(47.2% 0.08 194.8)
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 #A90F3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.006
- Raspberry #B00149 ΔE 0.027
- Cranberry #9E003A ΔE 0.028
- Brown #A52A2A ΔE 0.040
- Auburn #9B2226 ΔE 0.042
- Rose Red #BE013C ΔE 0.043
- Berry #990F4B ΔE 0.045
- Firebrick #B22222 ΔE 0.045
Use #A90F3A 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.