#901A28
Closest named color: Auburn (#9B2226). oklch(42.7% 0.152 20.9), rgb(144, 26, 40).
Aa
White text reads best on this color (8.88:1).
About this color
#901A28 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.152 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.029 away. White text reads best on it, at 8.88:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.36:1 |
| White text | 8.88:1 |
Values
| HEX | #901A28 |
| RGB | rgb(144, 26, 40) |
| HSL | hsl(353, 69%, 33%) |
| OKLCH | oklch(42.7% 0.152 20.9) |
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 #901A28 | 8.88:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #901A28 | 2.36:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #901A28 text on white | 8.88:1 | AAA | Lc 88.9 | Fine for body text |
| #901A28 text on black | 2.36:1 | Fails | Lc -13.3 | Not readable |
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 800.
-
Step 50
50
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE4E2
oklch(93.7% 0.025 23.6)
-
Step 200
200
#F8CDCB
oklch(88.5% 0.049 21.2)
-
Step 300
300
#F5AAA8
oklch(80.9% 0.089 20.9)
-
Step 400
400
#EC797A
oklch(70.7% 0.142 20.8)
-
Step 500
500
#E25058
oklch(63.1% 0.181 20.9)
-
Step 600
600
#CD2A3D
oklch(55.5% 0.197 21)
-
Step 700
700
#B1192F
oklch(49.1% 0.183 21.1)
-
Step 800
800 (this color)
#901A28
oklch(42.7% 0.152 20.9)
-
Step 900
900
#741E25
oklch(37.7% 0.119 20.6)
-
Step 950
950
#441416
oklch(27% 0.074 21.1)
#901A28 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) | #3F3A27 | 0.167 |
| Deuteranopia (no green cones) | #5C5324 | 0.153 |
| Tritanopia (no blue cones) | #9F0021 | 0.031 |
| Achromatopsia (no color) | #4A4A4A | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901A28
#901A28
oklch(42.7% 0.152 20.9)
- #005B5F
#005B5F
oklch(42.8% 0.073 200)
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 #901A28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.029
- Carmine #9D0216 ΔE 0.030
- Brick Red #8F1402 ΔE 0.031
- Blood Red #980002 ΔE 0.032
- Deep Red #9A0200 ΔE 0.034
- Red Wine #8C0034 ΔE 0.036
- Dark Red #8B0000 ΔE 0.038
- Red Brown #8B2E16 ΔE 0.042
Use #901A28 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.