#A03F42
Closest named color: Light Maroon (#A24857). oklch(50.1% 0.129 21.2), rgb(160, 63, 66).
Aa
White text reads best on this color (6.39:1).
About this color
#A03F42 is a medium-dark, moderately saturated red. In OKLCH its lightness is 50%, its chroma 0.129 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Light Maroon (#A24857), ΔE 0.031 away. White text reads best on it, at 6.39:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Light Maroon (#A24857) |
| Black text | 3.28:1 |
| White text | 6.39:1 |
Values
| HEX | #A03F42 |
| RGB | rgb(160, 63, 66) |
| HSL | hsl(358, 43%, 44%) |
| OKLCH | oklch(50.1% 0.129 21.2) |
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 #A03F42 | 6.39:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #A03F42 | 3.28:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #A03F42 text on white | 6.39:1 | AA | Lc 81.1 | Fine for body text |
| #A03F42 text on black | 3.28:1 | AA large text | Lc -20.8 | 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
#F6E5E5
oklch(93.5% 0.019 17.5)
-
Step 200
200
#EFD1CF
oklch(88.5% 0.034 22.4)
-
Step 300
300
#E7B1AF
oklch(80.9% 0.063 21)
-
Step 400
400
#D88785
oklch(70.7% 0.1 21.4)
-
Step 500
500
#CB6767
oklch(63.1% 0.127 21.3)
-
Step 600
600
#B64C4E
oklch(55.6% 0.138 21.6)
-
Step 700
700 (this color)
#A03F42
oklch(50.1% 0.129 21.2)
-
Step 800
800
#7F3234
oklch(42.6% 0.107 21.2)
-
Step 900
900
#672D2E
oklch(37.7% 0.084 20.9)
-
Step 950
950
#3C1B1B
oklch(26.9% 0.052 21.1)
#A03F42 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) | #575241 | 0.139 |
| Deuteranopia (no green cones) | #6F6740 | 0.129 |
| Tritanopia (no blue cones) | #AF2D41 | 0.038 |
| Achromatopsia (no color) | #5F5F5F | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A03F42
#A03F42
oklch(50.1% 0.129 21.2)
- #007278
#007278
oklch(50.2% 0.085 201.2)
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 #A03F42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Maroon #A24857 ΔE 0.031
- Brick #A03623 ΔE 0.035
- Brown #A52A2A ΔE 0.038
- Light Burgundy #A8415B ΔE 0.039
- Russet #A13905 ΔE 0.052
- Firebrick #B22222 ΔE 0.053
- Rusty Red #AF2F0D ΔE 0.053
- Dull Red #BB3F3F ΔE 0.054
Use #A03F42 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.