#A3503F
Closest named color: Sienna (#A0522D). oklch(53% 0.114 32.9), rgb(163, 80, 63).
Aa
White text reads best on this color (5.56:1).
About this color
#A3503F is a medium-dark, moderately saturated red. In OKLCH its lightness is 53%, its chroma 0.114 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.024 away. White text reads best on it, at 5.56:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #A3503F |
| RGB | rgb(163, 80, 63) |
| HSL | hsl(10, 44%, 44%) |
| OKLCH | oklch(53% 0.114 32.9) |
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 #A3503F | 5.56:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #A3503F | 3.77:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #A3503F text on white | 5.56:1 | AA | Lc 77.3 | Fine for body text |
| #A3503F text on black | 3.77:1 | AA large text | Lc -24.4 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F4E7E4
oklch(93.7% 0.015 33.1)
-
Step 200
200
#EBD3CD
oklch(88.5% 0.028 34.3)
-
Step 300
300
#E0B5AC
oklch(80.9% 0.052 31.9)
-
Step 400
400
#CE8E80
oklch(70.7% 0.081 32.8)
-
Step 500
500
#C07160
oklch(63.1% 0.104 33)
-
Step 600
600 (this color)
#A3503F
oklch(53% 0.114 32.9)
-
Step 700
700
#934738
oklch(49.1% 0.106 32.6)
-
Step 800
800
#773B2E
oklch(42.6% 0.087 33.4)
-
Step 900
900
#613329
oklch(37.8% 0.069 33.3)
-
Step 950
950
#391E18
oklch(27% 0.044 33.4)
#A3503F 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) | #655D3D | 0.114 |
| Deuteranopia (no green cones) | #796F3D | 0.106 |
| Tritanopia (no blue cones) | #B2414C | 0.047 |
| Achromatopsia (no color) | #686868 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3503F
#A3503F
oklch(53% 0.114 32.9)
- #00798C
#00798C
oklch(53% 0.093 213.6)
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 #A3503F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.024
- Light Maroon #A24857 ΔE 0.044
- Burnt Umber #A0450E ΔE 0.044
- Cinnamon #AC4F06 ΔE 0.046
- Dusty Red #B9484E ΔE 0.050
- Sepia #985E2B ΔE 0.051
- Dull Red #BB3F3F ΔE 0.053
- Earth #A2653E ΔE 0.053
Use #A3503F 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.