#91103A
Closest named color: Red Wine (#8C0034). oklch(42.7% 0.16 10.2), rgb(145, 16, 58).
Aa
White text reads best on this color (8.97:1).
About this color
#91103A is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.160 and its hue 10°. 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 8.97:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Red Wine (#8C0034) |
| Black text | 2.33:1 |
| White text | 8.97:1 |
Values
| HEX | #91103A |
| RGB | rgb(145, 16, 58) |
| HSL | hsl(340, 80%, 32%) |
| OKLCH | oklch(42.7% 0.16 10.2) |
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 #91103A | 8.97:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #91103A | 2.33:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #91103A text on white | 8.97:1 | AAA | Lc 88.8 | Fine for body text |
| #91103A text on black | 2.33:1 | 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
#FEF2F3
oklch(97.1% 0.013 11.5)
-
Step 100
100
#FBE3E6
oklch(93.6% 0.027 9)
-
Step 200
200
#F9CCD1
oklch(88.5% 0.051 10.7)
-
Step 300
300
#F6A7B2
oklch(80.8% 0.094 10.2)
-
Step 400
400
#EE758B
oklch(70.8% 0.15 10.3)
-
Step 500
500
#E4496E
oklch(63.2% 0.191 10.4)
-
Step 600
600
#CF1D56
oklch(55.6% 0.208 10.4)
-
Step 700
700
#B30646
oklch(49.2% 0.194 10.5)
-
Step 800
800 (this color)
#91103A
oklch(42.7% 0.16 10.2)
-
Step 900
900
#751A32
oklch(37.8% 0.125 10.3)
-
Step 950
950
#45111D
oklch(27% 0.08 10.5)
#91103A 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) | #38393B | 0.181 |
| Deuteranopia (no green cones) | #595237 | 0.163 |
| Tritanopia (no blue cones) | #9F0024 | 0.040 |
| Achromatopsia (no color) | #494949 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91103A
#91103A
oklch(42.7% 0.16 10.2)
- #005B58
#005B58
oklch(42.5% 0.073 190.9)
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 #91103A, 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 0.027
- Purple Red #990147 ΔE 0.027
- Berry #990F4B ΔE 0.031
- Mulberry #920A4E ΔE 0.034
- Red Purple #820747 ΔE 0.045
- Wine #80013F ΔE 0.046
- Auburn #9B2226 ΔE 0.048
Use #91103A 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.