#A7011B
Closest named color: Carmine (#9D0216). oklch(45.9% 0.186 24.4), rgb(167, 1, 27).
Aa
White text reads best on this color (7.88:1).
About this color
#A7011B is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.186 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Carmine (#9D0216), ΔE 0.022 away. White text reads best on it, at 7.88:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.186) |
| Temperature | warm |
| Nearest name | Carmine (#9D0216) |
| Black text | 2.66:1 |
| White text | 7.88:1 |
Values
| HEX | #A7011B |
| RGB | rgb(167, 1, 27) |
| HSL | hsl(351, 99%, 33%) |
| OKLCH | oklch(45.9% 0.186 24.4) |
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 #A7011B | 7.88:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #A7011B | 2.66:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #A7011B text on white | 7.88:1 | AAA | Lc 84.8 | Fine for body text |
| #A7011B text on black | 2.66:1 | Fails | Lc -17.2 | 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
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F9CDC9
oklch(88.5% 0.05 24.2)
-
Step 300
300
#F5AAA4
oklch(80.8% 0.089 24.3)
-
Step 400
400
#ED7973
oklch(70.7% 0.144 24.4)
-
Step 500
500
#E3504F
oklch(63.1% 0.183 24.4)
-
Step 600
600
#CE2932
oklch(55.5% 0.199 24.4)
-
Step 700
700 (this color)
#A7011B
oklch(45.9% 0.186 24.4)
-
Step 800
800
#911A20
oklch(42.8% 0.154 24.5)
-
Step 900
900
#741E1F
oklch(37.6% 0.12 24.4)
-
Step 950
950
#441413
oklch(27% 0.075 24.6)
#A7011B 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) | #433C19 | 0.207 |
| Deuteranopia (no green cones) | #685D12 | 0.187 |
| Tritanopia (no blue cones) | #B90010 | 0.039 |
| Achromatopsia (no color) | #515151 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A7011B
#A7011B
oklch(45.9% 0.186 24.4)
- #00646C
#00646C
oklch(45.9% 0.078 204.4)
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 #A7011B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carmine #9D0216 ΔE 0.022
- Auburn #9B2226 ΔE 0.029
- Deep Red #9A0200 ΔE 0.033
- Rufous #AE2012 ΔE 0.033
- Brown #A52A2A ΔE 0.034
- Rouge #AB1239 ΔE 0.034
- Burnt Red #9F2305 ΔE 0.035
- Blood Red #980002 ΔE 0.037
Use #A7011B 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.