#A3271E
Closest named color: Brown (#A52A2A). oklch(47.3% 0.162 28.9), rgb(163, 39, 30).
Aa
White text reads best on this color (7.32:1).
About this color
#A3271E is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.162 and its hue 29°. 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 7.32:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 2.86:1 |
| White text | 7.32:1 |
Values
| HEX | #A3271E |
| RGB | rgb(163, 39, 30) |
| HSL | hsl(4, 69%, 38%) |
| OKLCH | oklch(47.3% 0.162 28.9) |
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 #A3271E | 7.32:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #A3271E | 2.86:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #A3271E text on white | 7.32:1 | AAA | Lc 84.1 | Fine for body text |
| #A3271E text on black | 2.86:1 | Fails | Lc -17.9 | 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
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC9
oklch(88.5% 0.044 28.5)
-
Step 300
300
#EFAEA4
oklch(80.9% 0.078 28.7)
-
Step 400
400
#E48073
oklch(70.6% 0.126 28.4)
-
Step 500
500
#D95C4E
oklch(63.1% 0.16 28.8)
-
Step 600
600
#C43D31
oklch(55.5% 0.174 28.9)
-
Step 700
700 (this color)
#A3271E
oklch(47.3% 0.162 28.9)
-
Step 800
800
#89281F
oklch(42.6% 0.133 29.1)
-
Step 900
900
#6F261F
oklch(37.7% 0.105 28.5)
-
Step 950
950
#411813
oklch(27.1% 0.065 29.1)
#A3271E 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) | #4D451B | 0.174 |
| Deuteranopia (no green cones) | #6C6018 | 0.157 |
| Tritanopia (no blue cones) | #B40026 | 0.042 |
| Achromatopsia (no color) | #565656 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3271E
#A3271E
oklch(47.3% 0.162 28.9)
- #006874
#006874
oklch(47.3% 0.082 208.6)
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 #A3271E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.013
- Burnt Red #9F2305 ΔE 0.018
- Rust Red #AA2704 ΔE 0.021
- Rufous #AE2012 ΔE 0.022
- Auburn #9B2226 ΔE 0.023
- Brick #A03623 ΔE 0.023
- Firebrick #B22222 ΔE 0.031
- Rusty Red #AF2F0D ΔE 0.033
Use #A3271E 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.