#A72531
Closest named color: Brown (#A52A2A). oklch(48.1% 0.165 21.6), rgb(167, 37, 49).
Aa
White text reads best on this color (7.11:1).
About this color
#A72531 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.165 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.013 away. White text reads best on it, at 7.11:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 2.95:1 |
| White text | 7.11:1 |
Values
| HEX | #A72531 |
| RGB | rgb(167, 37, 49) |
| HSL | hsl(354, 64%, 40%) |
| OKLCH | oklch(48.1% 0.165 21.6) |
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 #A72531 | 7.11:1 | AAA | Lc -88.3 | Fine for body text |
| Black text on #A72531 | 2.95:1 | Fails | Lc 20.8 | Dividers and decoration only |
| #A72531 text on white | 7.11:1 | AAA | Lc 83.3 | Fine for body text |
| #A72531 text on black | 2.95:1 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#F9E4E3
oklch(93.5% 0.023 20.9)
-
Step 200
200
#F5CECC
oklch(88.4% 0.044 21.5)
-
Step 300
300
#F0ADAA
oklch(81% 0.079 21.8)
-
Step 400
400
#E57E7D
oklch(70.7% 0.128 21.4)
-
Step 500
500
#DB595C
oklch(63.2% 0.163 21.6)
-
Step 600
600
#C63842
oklch(55.6% 0.178 21.5)
-
Step 700
700 (this color)
#A72531
oklch(48.1% 0.165 21.6)
-
Step 800
800
#8A242B
oklch(42.6% 0.137 21.6)
-
Step 900
900
#6F2427
oklch(37.6% 0.106 21.5)
-
Step 950
950
#421617
oklch(27% 0.069 21.5)
#A72531 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) | #4C4630 | 0.181 |
| Deuteranopia (no green cones) | #6C622D | 0.166 |
| Tritanopia (no blue cones) | #B8002B | 0.036 |
| Achromatopsia (no color) | #585858 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A72531
#A72531
oklch(48.1% 0.165 21.6)
- #006B71
#006B71
oklch(48% 0.082 201.6)
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 #A72531, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.013
- Rouge #AB1239 ΔE 0.025
- Firebrick #B22222 ΔE 0.027
- Auburn #9B2226 ΔE 0.029
- Rufous #AE2012 ΔE 0.030
- Brick #A03623 ΔE 0.036
- Rust Red #AA2704 ΔE 0.037
- Burnt Red #9F2305 ΔE 0.040
Use #A72531 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.