#A23B1B
Closest named color: Russet (#A13905). oklch(49.3% 0.144 37.1), rgb(162, 59, 27).
Aa
White text reads best on this color (6.60:1).
About this color
#A23B1B is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.144 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.012 away. White text reads best on it, at 6.60:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 3.17:1 |
| White text | 6.60:1 |
Values
| HEX | #A23B1B |
| RGB | rgb(162, 59, 27) |
| HSL | hsl(14, 71%, 37%) |
| OKLCH | oklch(49.3% 0.144 37.1) |
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 #A23B1B | 6.60:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #A23B1B | 3.17:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #A23B1B text on white | 6.60:1 | AA | Lc 81.8 | Fine for body text |
| #A23B1B text on black | 3.17:1 | AA large text | Lc -20.1 | 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
#FBF3F1
oklch(97% 0.009 34.3)
-
Step 100
100
#F7E6E1
oklch(93.7% 0.02 37)
-
Step 200
200
#F1D1C7
oklch(88.5% 0.039 38.1)
-
Step 300
300
#E9B2A1
oklch(80.9% 0.069 37.9)
-
Step 400
400
#DC876E
oklch(70.7% 0.111 37.2)
-
Step 500
500
#D06647
oklch(63.1% 0.142 37.1)
-
Step 600
600
#BC4A28
oklch(55.7% 0.155 36.9)
-
Step 700
700 (this color)
#A23B1B
oklch(49.3% 0.144 37.1)
-
Step 800
800
#833118
oklch(42.7% 0.119 37.1)
-
Step 900
900
#6A2C1B
oklch(37.7% 0.093 36.2)
-
Step 950
950
#3E1B10
oklch(27% 0.058 38.1)
#A23B1B 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) | #594E16 | 0.144 |
| Deuteranopia (no green cones) | #726516 | 0.131 |
| Tritanopia (no blue cones) | #B31F35 | 0.061 |
| Achromatopsia (no color) | #5D5D5D | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A23B1B
#A23B1B
oklch(49.3% 0.144 37.1)
- #006D82
#006D82
oklch(49.3% 0.088 217.2)
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 #A23B1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.012
- Brick #A03623 ΔE 0.015
- Burnt Umber #A0450E ΔE 0.024
- Rusty Red #AF2F0D ΔE 0.028
- Rust Red #AA2704 ΔE 0.031
- Brown #A52A2A ΔE 0.037
- Burnt Red #9F2305 ΔE 0.040
- Rufous #AE2012 ΔE 0.041
Use #A23B1B 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.