#91003B
Closest named color: Red Wine (#8C0034). oklch(42.1% 0.168 8.2), rgb(145, 0, 59).
Aa
White text reads best on this color (9.26:1).
About this color
#91003B is a dark, vivid red. In OKLCH its lightness is 42%, its chroma 0.168 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Red Wine (#8C0034), ΔE 0.015 away. White text reads best on it, at 9.26:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Red Wine (#8C0034) |
| Black text | 2.26:1 |
| White text | 9.26:1 |
Values
| HEX | #91003B |
| RGB | rgb(145, 0, 59) |
| HSL | hsl(336, 100%, 28%) |
| OKLCH | oklch(42.1% 0.168 8.2) |
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 #91003B | 9.26:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #91003B | 2.26:1 | Fails | Lc 15.0 | Not readable |
| #91003B text on white | 9.26:1 | AAA | Lc 89.0 | Fine for body text |
| #91003B text on black | 2.26:1 | 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FCE2E6
oklch(93.5% 0.029 7.1)
-
Step 200
200
#FBCBD2
oklch(88.6% 0.055 8.4)
-
Step 300
300
#F8A6B4
oklch(80.9% 0.098 8.3)
-
Step 400
400
#F0728D
oklch(70.7% 0.157 8.5)
-
Step 500
500
#E74371
oklch(63.1% 0.201 8.5)
-
Step 600
600
#D20B5A
oklch(55.6% 0.219 8.2)
-
Step 700
700
#B3004B
oklch(49.1% 0.197 8.1)
-
Step 800
800 (this color)
#91003B
oklch(42.1% 0.168 8.2)
-
Step 900
900
#761534
oklch(37.6% 0.131 7.9)
-
Step 950
950
#460F1E
oklch(27% 0.084 8.6)
#91003B 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) | #34363C | 0.191 |
| Deuteranopia (no green cones) | #565138 | 0.173 |
| Tritanopia (no blue cones) | #9F0020 | 0.049 |
| Achromatopsia (no color) | #474747 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91003B
#91003B
oklch(42.1% 0.168 8.2)
- #005A55
#005A55
oklch(42.1% 0.073 188.3)
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 #91003B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Wine #8C0034 ΔE 0.015
- Purple Red #990147 ΔE 0.024
- Mulberry #920A4E ΔE 0.029
- Cranberry #9E003A ΔE 0.029
- Berry #990F4B ΔE 0.030
- Red Purple #820747 ΔE 0.039
- Wine #80013F ΔE 0.040
- Dark Fuchsia #9D0759 ΔE 0.052
Use #91003B 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.