#A63E28
Closest named color: Brick (#A03623). oklch(50.5% 0.142 33.6), rgb(166, 62, 40).
Aa
White text reads best on this color (6.28:1).
About this color
#A63E28 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.142 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.021 away. White text reads best on it, at 6.28:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #A63E28 |
| RGB | rgb(166, 62, 40) |
| HSL | hsl(10, 61%, 40%) |
| OKLCH | oklch(50.5% 0.142 33.6) |
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 #A63E28 | 6.28:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #A63E28 | 3.34:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #A63E28 text on white | 6.28:1 | AA | Lc 80.5 | Fine for body text |
| #A63E28 text on black | 3.34:1 | AA large text | Lc -21.4 | 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
#F7E5E1
oklch(93.5% 0.021 32.5)
-
Step 200
200
#F1D1C9
oklch(88.5% 0.038 34.3)
-
Step 300
300
#E9B1A4
oklch(80.8% 0.068 33.4)
-
Step 400
400
#DC8673
oklch(70.6% 0.11 33.3)
-
Step 500
500
#D0654E
oklch(63% 0.141 33.5)
-
Step 600
600
#BC4931
oklch(55.6% 0.154 33.5)
-
Step 700
700 (this color)
#A63E28
oklch(50.5% 0.142 33.6)
-
Step 800
800
#83311F
oklch(42.8% 0.117 34)
-
Step 900
900
#6A2C1F
oklch(37.8% 0.092 33.4)
-
Step 950
950
#3E1A13
oklch(26.9% 0.058 32.4)
#A63E28 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) | #5B5225 | 0.145 |
| Deuteranopia (no green cones) | #756925 | 0.133 |
| Tritanopia (no blue cones) | #B72539 | 0.055 |
| Achromatopsia (no color) | #606060 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A63E28
#A63E28
oklch(50.5% 0.142 33.6)
- #007183
#007183
oklch(50.4% 0.089 213.7)
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 #A63E28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.021
- Russet #A13905 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.028
- Burnt Umber #A0450E ΔE 0.030
- Rust Red #AA2704 ΔE 0.036
- Brown #A52A2A ΔE 0.037
- Sienna #A0522D ΔE 0.042
- Rufous #AE2012 ΔE 0.042
Use #A63E28 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.