#91103D
Closest named color: Red Wine (#8C0034). oklch(42.8% 0.161 8.6), rgb(145, 16, 61).
Aa
White text reads best on this color (8.95:1).
About this color
#91103D is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.161 and its hue 9°. Its hue sits on the warm side of the wheel. The nearest named color is Red Wine (#8C0034), ΔE 0.020 away. White text reads best on it, at 8.95:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Red Wine (#8C0034) |
| Black text | 2.34:1 |
| White text | 8.95:1 |
Values
| HEX | #91103D |
| RGB | rgb(145, 16, 61) |
| HSL | hsl(339, 80%, 32%) |
| OKLCH | oklch(42.8% 0.161 8.6) |
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 #91103D | 8.95:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #91103D | 2.34:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #91103D text on white | 8.95:1 | AAA | Lc 88.8 | Fine for body text |
| #91103D text on black | 2.34:1 | 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FBE3E6
oklch(93.6% 0.027 9)
-
Step 200
200
#F9CCD2
oklch(88.6% 0.051 9.2)
-
Step 300
300
#F6A7B4
oklch(80.8% 0.094 8.6)
-
Step 400
400
#ED748E
oklch(70.6% 0.151 8.2)
-
Step 500
500
#E34872
oklch(63% 0.192 8.3)
-
Step 600
600
#CF1C5A
oklch(55.6% 0.209 8.7)
-
Step 700
700
#B2054A
oklch(49% 0.194 8.6)
-
Step 800
800 (this color)
#91103D
oklch(42.8% 0.161 8.6)
-
Step 900
900
#741934
oklch(37.6% 0.125 8.3)
-
Step 950
950
#45111E
oklch(27% 0.08 9.2)
#91103D 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) | #38393E | 0.181 |
| Deuteranopia (no green cones) | #58523A | 0.164 |
| Tritanopia (no blue cones) | #9F0026 | 0.042 |
| Achromatopsia (no color) | #494949 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91103D
#91103D
oklch(42.8% 0.161 8.6)
- #005C57
#005C57
oklch(42.8% 0.074 188.4)
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 #91103D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Wine #8C0034 ΔE 0.020
- Purple Red #990147 ΔE 0.024
- Berry #990F4B ΔE 0.027
- Cranberry #9E003A ΔE 0.027
- Mulberry #920A4E ΔE 0.029
- Red Purple #820747 ΔE 0.043
- Wine #80013F ΔE 0.044
- Dark Fuchsia #9D0759 ΔE 0.050
Use #91103D 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.