#A2311A
Closest named color: Brick (#A03623). oklch(48.1% 0.153 33.3), rgb(162, 49, 26).
Aa
White text reads best on this color (7.02:1).
About this color
#A2311A is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.153 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.009 away. White text reads best on it, at 7.02:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.153) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 2.99:1 |
| White text | 7.02:1 |
Values
| HEX | #A2311A |
| RGB | rgb(162, 49, 26) |
| HSL | hsl(10, 72%, 37%) |
| OKLCH | oklch(48.1% 0.153 33.3) |
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 #A2311A | 7.02:1 | AAA | Lc -88.2 | Fine for body text |
| Black text on #A2311A | 2.99:1 | Fails | Lc 20.8 | Dividers and decoration only |
| #A2311A text on white | 7.02:1 | AAA | Lc 83.2 | Fine for body text |
| #A2311A text on black | 2.99:1 | Fails | Lc -18.7 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E1
oklch(93.6% 0.022 31.8)
-
Step 200
200
#F3D0C8
oklch(88.5% 0.041 33)
-
Step 300
300
#ECB0A2
oklch(80.9% 0.073 33.5)
-
Step 400
400
#E0846F
oklch(70.7% 0.118 33.7)
-
Step 500
500
#D56149
oklch(63.1% 0.152 33.2)
-
Step 600
600
#C0442B
oklch(55.6% 0.164 33.3)
-
Step 700
700 (this color)
#A2311A
oklch(48.1% 0.153 33.3)
-
Step 800
800
#862D1B
oklch(42.7% 0.126 33.3)
-
Step 900
900
#6C2A1C
oklch(37.7% 0.098 33.6)
-
Step 950
950
#401911
oklch(27% 0.063 33.1)
#A2311A 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) | #524916 | 0.160 |
| Deuteranopia (no green cones) | #6E6214 | 0.145 |
| Tritanopia (no blue cones) | #B3062D | 0.056 |
| Achromatopsia (no color) | #595959 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A2311A
#A2311A
oklch(48.1% 0.153 33.3)
- #006A7A
#006A7A
oklch(48.2% 0.084 212.7)
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 #A2311A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.009
- Rust Red #AA2704 ΔE 0.019
- Russet #A13905 ΔE 0.021
- Brown #A52A2A ΔE 0.022
- Burnt Red #9F2305 ΔE 0.024
- Rusty Red #AF2F0D ΔE 0.026
- Rufous #AE2012 ΔE 0.028
- Auburn #9B2226 ΔE 0.036
Use #A2311A 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.