#A9111B
Closest named color: Rufous (#AE2012). oklch(46.9% 0.182 25.9), rgb(169, 17, 27).
Aa
White text reads best on this color (7.54:1).
About this color
#A9111B is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.182 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Rufous (#AE2012), ΔE 0.022 away. White text reads best on it, at 7.54:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Rufous (#AE2012) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #A9111B |
| RGB | rgb(169, 17, 27) |
| HSL | hsl(356, 82%, 36%) |
| OKLCH | oklch(46.9% 0.182 25.9) |
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 #A9111B | 7.54:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #A9111B | 2.78:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #A9111B text on white | 7.54:1 | AAA | Lc 84.2 | Fine for body text |
| #A9111B text on black | 2.78:1 | Fails | Lc -17.8 | Dividers and decoration only |
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 700.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F8CDC9
oklch(88.4% 0.049 24.3)
-
Step 300
300
#F4ABA3
oklch(80.9% 0.087 26.1)
-
Step 400
400
#EB7B72
oklch(70.7% 0.14 26)
-
Step 500
500
#E1524C
oklch(63% 0.179 26)
-
Step 600
600
#CD2E2F
oklch(55.7% 0.195 26.1)
-
Step 700
700 (this color)
#A9111B
oklch(46.9% 0.182 25.9)
-
Step 800
800
#8F1D1E
oklch(42.6% 0.15 26)
-
Step 900
900
#73201E
oklch(37.7% 0.117 25.9)
-
Step 950
950
#441412
oklch(27% 0.075 25.8)
#A9111B 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) | #484019 | 0.199 |
| Deuteranopia (no green cones) | #6B5F12 | 0.180 |
| Tritanopia (no blue cones) | #BB0018 | 0.036 |
| Achromatopsia (no color) | #545454 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9111B
#A9111B
oklch(46.9% 0.182 25.9)
- #006770
#006770
oklch(46.9% 0.08 205.3)
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 #A9111B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rufous #AE2012 ΔE 0.022
- Brown #A52A2A ΔE 0.025
- Firebrick #B22222 ΔE 0.028
- Auburn #9B2226 ΔE 0.029
- Burnt Red #9F2305 ΔE 0.030
- Carmine #9D0216 ΔE 0.030
- Rust Red #AA2704 ΔE 0.031
- Rouge #AB1239 ΔE 0.034
Use #A9111B 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.