#A0503F
Closest named color: Sienna (#A0522D). oklch(52.6% 0.11 33.3), rgb(160, 80, 63).
Aa
White text reads best on this color (5.65:1).
About this color
#A0503F is a medium-dark, moderately saturated red. In OKLCH its lightness is 53%, its chroma 0.110 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.023 away. White text reads best on it, at 5.65:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.110) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.71:1 |
| White text | 5.65:1 |
Values
| HEX | #A0503F |
| RGB | rgb(160, 80, 63) |
| HSL | hsl(11, 43%, 44%) |
| OKLCH | oklch(52.6% 0.11 33.3) |
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 #A0503F | 5.65:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #A0503F | 3.71:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #A0503F text on white | 5.65:1 | AA | Lc 77.9 | Fine for body text |
| #A0503F text on black | 3.71:1 | AA large text | Lc -23.9 | 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 600.
-
Step 50
50
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F3E7E4
oklch(93.7% 0.014 34.3)
-
Step 200
200
#EBD3CE
oklch(88.5% 0.028 31.7)
-
Step 300
300
#DFB6AC
oklch(81% 0.05 34)
-
Step 400
400
#CD8F81
oklch(70.8% 0.079 33.2)
-
Step 500
500
#BF7261
oklch(63.2% 0.101 33.3)
-
Step 600
600 (this color)
#A0503F
oklch(52.6% 0.11 33.3)
-
Step 700
700
#924839
oklch(49.1% 0.103 32.8)
-
Step 800
800
#763C2F
oklch(42.7% 0.084 33.8)
-
Step 900
900
#60342A
oklch(37.8% 0.066 33.7)
-
Step 950
950
#381F19
oklch(27.1% 0.041 34.3)
#A0503F 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) | #645D3D | 0.111 |
| Deuteranopia (no green cones) | #786E3E | 0.102 |
| Tritanopia (no blue cones) | #AF424C | 0.047 |
| Achromatopsia (no color) | #676767 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A0503F
#A0503F
oklch(52.6% 0.11 33.3)
- #00788A
#00788A
oklch(52.6% 0.092 212.8)
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 #A0503F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.023
- Burnt Umber #A0450E ΔE 0.043
- Light Maroon #A24857 ΔE 0.044
- Cinnamon #AC4F06 ΔE 0.048
- Sepia #985E2B ΔE 0.049
- Warm Brown #964E02 ΔE 0.054
- Brick #A03623 ΔE 0.054
- Earth #A2653E ΔE 0.054
Use #A0503F 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.