#A33F40
Closest named color: Light Maroon (#A24857). oklch(50.5% 0.133 22.5), rgb(163, 63, 64).
Aa
White text reads best on this color (6.28:1).
About this color
#A33F40 is a medium-dark, moderately saturated red. In OKLCH its lightness is 51%, its chroma 0.133 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Light Maroon (#A24857), ΔE 0.032 away. White text reads best on it, at 6.28:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.133) |
| Temperature | warm |
| Nearest name | Light Maroon (#A24857) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #A33F40 |
| RGB | rgb(163, 63, 64) |
| HSL | hsl(359, 44%, 44%) |
| OKLCH | oklch(50.5% 0.133 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 #A33F40 | 6.28:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #A33F40 | 3.34:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #A33F40 text on white | 6.28:1 | AA | Lc 80.6 | Fine for body text |
| #A33F40 text on black | 3.34:1 | AA large text | Lc -21.3 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F0D0CE
oklch(88.4% 0.036 22.1)
-
Step 300
300
#E8B1AE
oklch(81% 0.065 22.2)
-
Step 400
400
#D98683
oklch(70.6% 0.103 22.2)
-
Step 500
500
#CD6664
oklch(63.2% 0.131 22.6)
-
Step 600
600
#B84A4B
oklch(55.5% 0.143 22.4)
-
Step 700
700 (this color)
#A33F40
oklch(50.5% 0.133 22.5)
-
Step 800
800
#813132
oklch(42.7% 0.111 22.3)
-
Step 900
900
#682C2C
oklch(37.7% 0.087 22.1)
-
Step 950
950
#3D1B1A
oklch(27.1% 0.054 23)
#A33F40 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) | #58533F | 0.143 |
| Deuteranopia (no green cones) | #71683E | 0.132 |
| Tritanopia (no blue cones) | #B22C40 | 0.039 |
| Achromatopsia (no color) | #606060 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A33F40
#A33F40
oklch(50.5% 0.133 22.5)
- #00737A
#00737A
oklch(50.6% 0.086 202.2)
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 #A33F40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Maroon #A24857 ΔE 0.032
- Brick #A03623 ΔE 0.034
- Brown #A52A2A ΔE 0.037
- Light Burgundy #A8415B ΔE 0.039
- Dull Red #BB3F3F ΔE 0.048
- Rusty Red #AF2F0D ΔE 0.048
- Firebrick #B22222 ΔE 0.049
- Russet #A13905 ΔE 0.050
Use #A33F40 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.