#901A2D
Closest named color: Auburn (#9B2226). oklch(42.8% 0.152 18.5), rgb(144, 26, 45).
Aa
White text reads best on this color (8.85:1).
About this color
#901A2D is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.152 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.031 away. White text reads best on it, at 8.85:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.37:1 |
| White text | 8.85:1 |
Values
| HEX | #901A2D |
| RGB | rgb(144, 26, 45) |
| HSL | hsl(350, 69%, 33%) |
| OKLCH | oklch(42.8% 0.152 18.5) |
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 #901A2D | 8.85:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #901A2D | 2.37:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #901A2D text on white | 8.85:1 | AAA | Lc 88.8 | Fine for body text |
| #901A2D text on black | 2.37:1 | Fails | Lc -13.4 | 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
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F8CDCD
oklch(88.5% 0.049 18.1)
-
Step 300
300
#F5AAAA
oklch(81% 0.089 19.2)
-
Step 400
400
#EC797E
oklch(70.8% 0.142 18.6)
-
Step 500
500
#E24F5D
oklch(63.1% 0.182 18.6)
-
Step 600
600
#CD2944
oklch(55.6% 0.197 18.4)
-
Step 700
700
#B11835
oklch(49.1% 0.184 18.7)
-
Step 800
800 (this color)
#901A2D
oklch(42.8% 0.152 18.5)
-
Step 900
900
#731E28
oklch(37.6% 0.118 18.4)
-
Step 950
950
#441318
oklch(26.9% 0.075 17.8)
#901A2D 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) | #3E3A2D | 0.168 |
| Deuteranopia (no green cones) | #5B5329 | 0.154 |
| Tritanopia (no blue cones) | #9F0023 | 0.032 |
| Achromatopsia (no color) | #4A4A4A | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901A2D
#901A2D
oklch(42.8% 0.152 18.5)
- #005B5E
#005B5E
oklch(42.8% 0.073 198.7)
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 #901A2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.031
- Red Wine #8C0034 ΔE 0.031
- Carmine #9D0216 ΔE 0.034
- Brick Red #8F1402 ΔE 0.037
- Blood Red #980002 ΔE 0.038
- Cranberry #9E003A ΔE 0.038
- Deep Red #9A0200 ΔE 0.040
- Dark Red #8B0000 ΔE 0.043
Use #901A2D 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.