#A0211F
Closest named color: Auburn (#9B2226). oklch(46.2% 0.163 27.1), rgb(160, 33, 31).
Aa
White text reads best on this color (7.68:1).
About this color
#A0211F is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.163 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.012 away. White text reads best on it, at 7.68:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.163) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.73:1 |
| White text | 7.68:1 |
Values
| HEX | #A0211F |
| RGB | rgb(160, 33, 31) |
| HSL | hsl(1, 68%, 37%) |
| OKLCH | oklch(46.2% 0.163 27.1) |
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 #A0211F | 7.68:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #A0211F | 2.73:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #A0211F text on white | 7.68:1 | AAA | Lc 85.2 | Fine for body text |
| #A0211F text on black | 2.73:1 | Fails | Lc -16.8 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#F9E4E2
oklch(93.5% 0.023 24.1)
-
Step 200
200
#F5CFCA
oklch(88.5% 0.044 26.8)
-
Step 300
300
#F0ADA5
oklch(80.9% 0.08 26.6)
-
Step 400
400
#E58075
oklch(70.8% 0.126 27.2)
-
Step 500
500
#DA5B51
oklch(63.1% 0.162 27.2)
-
Step 600
600
#C53B35
oklch(55.5% 0.176 27)
-
Step 700
700 (this color)
#A0211F
oklch(46.2% 0.163 27.1)
-
Step 800
800
#8A2722
oklch(42.8% 0.135 27.3)
-
Step 900
900
#6F2621
oklch(37.8% 0.105 27.1)
-
Step 950
950
#411714
oklch(26.9% 0.066 26.5)
#A0211F 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) | #49411D | 0.177 |
| Deuteranopia (no green cones) | #685D19 | 0.161 |
| Tritanopia (no blue cones) | #B10022 | 0.037 |
| Achromatopsia (no color) | #535353 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A0211F
#A0211F
oklch(46.2% 0.163 27.1)
- #00656F
#00656F
oklch(46.3% 0.079 206.6)
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 #A0211F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.012
- Burnt Red #9F2305 ΔE 0.018
- Brown #A52A2A ΔE 0.019
- Carmine #9D0216 ΔE 0.027
- Rufous #AE2012 ΔE 0.030
- Rust Red #AA2704 ΔE 0.031
- Brick #A03623 ΔE 0.032
- Deep Red #9A0200 ΔE 0.034
Use #A0211F 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.