#900F34
Closest named color: Red Wine (#8C0034). oklch(42.3% 0.16 13.1), rgb(144, 15, 52).
Aa
White text reads best on this color (9.11:1).
About this color
#900F34 is a dark, vivid red. In OKLCH its lightness is 42%, its chroma 0.160 and its hue 13°. Its hue sits on the warm side of the wheel. The nearest named color is Red Wine (#8C0034), ΔE 0.016 away. White text reads best on it, at 9.11:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Red Wine (#8C0034) |
| Black text | 2.30:1 |
| White text | 9.11:1 |
Values
| HEX | #900F34 |
| RGB | rgb(144, 15, 52) |
| HSL | hsl(343, 81%, 31%) |
| OKLCH | oklch(42.3% 0.16 13.1) |
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 #900F34 | 9.11:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #900F34 | 2.30:1 | Fails | Lc 14.8 | Not readable |
| #900F34 text on white | 9.11:1 | AAA | Lc 89.2 | Fine for body text |
| #900F34 text on black | 2.30:1 | Fails | Lc -13.0 | 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
#F9CCCF
oklch(88.5% 0.051 13.7)
-
Step 300
300
#F6A8AF
oklch(80.9% 0.092 13.4)
-
Step 400
400
#EE7586
oklch(70.7% 0.149 12.9)
-
Step 500
500
#E44968
oklch(63% 0.191 12.8)
-
Step 600
600
#D01E4F
oklch(55.7% 0.208 13.3)
-
Step 700
700
#B30840
oklch(49.1% 0.193 13.1)
-
Step 800
800 (this color)
#900F34
oklch(42.3% 0.16 13.1)
-
Step 900
900
#751A2E
oklch(37.7% 0.125 13.2)
-
Step 950
950
#45121B
oklch(27.1% 0.078 13.6)
#900F34 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) | #393834 | 0.179 |
| Deuteranopia (no green cones) | #585131 | 0.162 |
| Tritanopia (no blue cones) | #9E0021 | 0.037 |
| Achromatopsia (no color) | #484848 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #900F34
#900F34
oklch(42.3% 0.16 13.1)
- #005A59
#005A59
oklch(42.3% 0.072 193.5)
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 #900F34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Wine #8C0034 ΔE 0.016
- Cranberry #9E003A ΔE 0.030
- Purple Red #990147 ΔE 0.036
- Berry #990F4B ΔE 0.039
- Mulberry #920A4E ΔE 0.042
- Carmine #9D0216 ΔE 0.043
- Auburn #9B2226 ΔE 0.045
- Wine #80013F ΔE 0.047
Use #900F34 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.