#911B2B
Closest named color: Auburn (#9B2226). oklch(43.1% 0.152 19.8), rgb(145, 27, 43).
Aa
White text reads best on this color (8.76:1).
About this color
#911B2B is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.152 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.027 away. White text reads best on it, at 8.76:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #911B2B |
| RGB | rgb(145, 27, 43) |
| HSL | hsl(352, 69%, 34%) |
| OKLCH | oklch(43.1% 0.152 19.8) |
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 #911B2B | 8.76:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #911B2B | 2.39:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #911B2B text on white | 8.76:1 | AAA | Lc 88.6 | Fine for body text |
| #911B2B text on black | 2.39:1 | Fails | Lc -13.6 | 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
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE4E3
oklch(93.7% 0.025 20.6)
-
Step 200
200
#F8CDCC
oklch(88.5% 0.049 19.7)
-
Step 300
300
#F5AAA9
oklch(81% 0.089 20)
-
Step 400
400
#EC797B
oklch(70.8% 0.142 20.3)
-
Step 500
500
#E24F5A
oklch(63.1% 0.182 19.8)
-
Step 600
600
#CD2940
oklch(55.5% 0.198 19.8)
-
Step 700
700
#B11832
oklch(49.1% 0.184 19.8)
-
Step 800
800 (this color)
#911B2B
oklch(43.1% 0.152 19.8)
-
Step 900
900
#741E26
oklch(37.8% 0.119 20)
-
Step 950
950
#441317
oklch(26.9% 0.075 19)
#911B2B 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) | #3F3B2B | 0.168 |
| Deuteranopia (no green cones) | #5C5427 | 0.155 |
| Tritanopia (no blue cones) | #A00022 | 0.032 |
| Achromatopsia (no color) | #4B4B4B | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #911B2B
#911B2B
oklch(43.1% 0.152 19.8)
- #005C60
#005C60
oklch(43.2% 0.073 200)
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 #911B2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.027
- Carmine #9D0216 ΔE 0.031
- Brick Red #8F1402 ΔE 0.035
- Blood Red #980002 ΔE 0.035
- Red Wine #8C0034 ΔE 0.035
- Deep Red #9A0200 ΔE 0.036
- Cranberry #9E003A ΔE 0.039
- Dark Red #8B0000 ΔE 0.042
Use #911B2B 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.