#A33F36
Closest named color: Brick (#A03623). oklch(50.3% 0.135 28), rgb(163, 63, 54).
Aa
White text reads best on this color (6.32:1).
About this color
#A33F36 is a medium-dark, moderately saturated red. In OKLCH its lightness is 50%, its chroma 0.135 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.024 away. White text reads best on it, at 6.32:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 3.32:1 |
| White text | 6.32:1 |
Values
| HEX | #A33F36 |
| RGB | rgb(163, 63, 54) |
| HSL | hsl(5, 50%, 43%) |
| OKLCH | oklch(50.3% 0.135 28) |
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 #A33F36 | 6.32:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #A33F36 | 3.32:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #A33F36 text on white | 6.32:1 | AA | Lc 80.7 | Fine for body text |
| #A33F36 text on black | 3.32:1 | AA large text | Lc -21.1 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E5E3
oklch(93.5% 0.019 25.6)
-
Step 200
200
#F0D1CC
oklch(88.5% 0.036 28.7)
-
Step 300
300
#E8B1A9
oklch(80.9% 0.066 28)
-
Step 400
400
#DA877C
oklch(70.7% 0.104 28.1)
-
Step 500
500
#CD665B
oklch(63% 0.133 27.7)
-
Step 600
600
#B94B41
oklch(55.7% 0.145 27.9)
-
Step 700
700 (this color)
#A33F36
oklch(50.3% 0.135 28)
-
Step 800
800
#81322A
oklch(42.7% 0.111 28.4)
-
Step 900
900
#682D26
oklch(37.7% 0.086 28.7)
-
Step 950
950
#3D1B17
oklch(27% 0.054 28.1)
#A33F36 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) | #595235 | 0.141 |
| Deuteranopia (no green cones) | #726833 | 0.131 |
| Tritanopia (no blue cones) | #B32A3D | 0.045 |
| Achromatopsia (no color) | #606060 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A33F36
#A33F36
oklch(50.3% 0.135 28)
- #00727E
#00727E
oklch(50.5% 0.087 207.5)
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 #A33F36, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.024
- Brown #A52A2A ΔE 0.035
- Russet #A13905 ΔE 0.038
- Rusty Red #AF2F0D ΔE 0.039
- Burnt Umber #A0450E ΔE 0.041
- Light Maroon #A24857 ΔE 0.043
- Rust Red #AA2704 ΔE 0.045
- Firebrick #B22222 ΔE 0.046
Use #A33F36 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.