#901337
Closest named color: Red Wine (#8C0034). oklch(42.6% 0.157 12), rgb(144, 19, 55).
Aa
White text reads best on this color (8.99:1).
About this color
#901337 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.157 and its hue 12°. Its hue sits on the warm side of the wheel. The nearest named color is Red Wine (#8C0034), ΔE 0.018 away. White text reads best on it, at 8.99:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.157) |
| Temperature | warm |
| Nearest name | Red Wine (#8C0034) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #901337 |
| RGB | rgb(144, 19, 55) |
| HSL | hsl(343, 77%, 32%) |
| OKLCH | oklch(42.6% 0.157 12) |
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 #901337 | 8.99:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #901337 | 2.33:1 | Fails | Lc 15.0 | Dividers and decoration only |
| #901337 text on white | 8.99:1 | AAA | Lc 89.0 | Fine for body text |
| #901337 text on black | 2.33:1 | Fails | Lc -13.2 | 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
#FEF2F3
oklch(97.1% 0.013 11.5)
-
Step 100
100
#FBE3E5
oklch(93.6% 0.026 11.9)
-
Step 200
200
#F9CCD0
oklch(88.5% 0.051 12.1)
-
Step 300
300
#F6A8B1
oklch(80.9% 0.093 11.7)
-
Step 400
400
#ED7688
oklch(70.8% 0.147 12.1)
-
Step 500
500
#E34B6B
oklch(63.1% 0.188 11.9)
-
Step 600
600
#CE2153
oklch(55.6% 0.204 11.8)
-
Step 700
700
#B20E43
oklch(49.1% 0.19 12.1)
-
Step 800
800 (this color)
#901337
oklch(42.6% 0.157 12)
-
Step 900
900
#741B30
oklch(37.7% 0.123 11.8)
-
Step 950
950
#44121C
oklch(26.9% 0.077 12)
#901337 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) | #393937 | 0.178 |
| Deuteranopia (no green cones) | #595234 | 0.160 |
| Tritanopia (no blue cones) | #9E0024 | 0.037 |
| Achromatopsia (no color) | #494949 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901337
#901337
oklch(42.6% 0.157 12)
- #005B59
#005B59
oklch(42.6% 0.073 192.2)
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 #901337, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Wine #8C0034 ΔE 0.018
- Cranberry #9E003A ΔE 0.029
- Purple Red #990147 ΔE 0.033
- Berry #990F4B ΔE 0.036
- Mulberry #920A4E ΔE 0.039
- Auburn #9B2226 ΔE 0.045
- Carmine #9D0216 ΔE 0.045
- Wine #80013F ΔE 0.048
Use #901337 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.