#A63136
Closest named color: Brown (#A52A2A). oklch(49.1% 0.153 22.5), rgb(166, 49, 54).
Aa
White text reads best on this color (6.74:1).
About this color
#A63136 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.153 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.015 away. White text reads best on it, at 6.74:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.153) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #A63136 |
| RGB | rgb(166, 49, 54) |
| HSL | hsl(357, 54%, 42%) |
| OKLCH | oklch(49.1% 0.153 22.5) |
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 #A63136 | 6.74:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #A63136 | 3.11:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #A63136 text on white | 6.74:1 | AA | Lc 82.2 | Fine for body text |
| #A63136 text on black | 3.11:1 | AA large text | Lc -19.7 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E3
oklch(93.7% 0.021 24.8)
-
Step 200
200
#F3CFCD
oklch(88.4% 0.041 21.7)
-
Step 300
300
#EDAEAB
oklch(80.9% 0.074 21.9)
-
Step 400
400
#E1817E
oklch(70.7% 0.119 22.4)
-
Step 500
500
#D55E5E
oklch(63% 0.151 22.4)
-
Step 600
600
#C14044
oklch(55.6% 0.165 22.6)
-
Step 700
700 (this color)
#A63136
oklch(49.1% 0.153 22.5)
-
Step 800
800
#872A2D
oklch(42.7% 0.127 22.5)
-
Step 900
900
#6C2828
oklch(37.7% 0.098 23)
-
Step 950
950
#401818
oklch(27% 0.063 22.2)
#A63136 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) | #514C35 | 0.166 |
| Deuteranopia (no green cones) | #6F6533 | 0.152 |
| Tritanopia (no blue cones) | #B60D34 | 0.042 |
| Achromatopsia (no color) | #5B5B5B | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A63136
#A63136
oklch(49.1% 0.153 22.5)
- #006E75
#006E75
oklch(49% 0.083 202.5)
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 #A63136, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.015
- Brick #A03623 ΔE 0.028
- Firebrick #B22222 ΔE 0.030
- Rufous #AE2012 ΔE 0.035
- Auburn #9B2226 ΔE 0.038
- Rouge #AB1239 ΔE 0.038
- Rust Red #AA2704 ΔE 0.038
- Rusty Red #AF2F0D ΔE 0.039
Use #A63136 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.