#A3533F
Closest named color: Sienna (#A0522D). oklch(53.5% 0.111 35.1), rgb(163, 83, 63).
Aa
White text reads best on this color (5.43:1).
About this color
#A3533F is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.111 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.021 away. White text reads best on it, at 5.43:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.111) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #A3533F |
| RGB | rgb(163, 83, 63) |
| HSL | hsl(12, 44%, 44%) |
| OKLCH | oklch(53.5% 0.111 35.1) |
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 #A3533F | 5.43:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #A3533F | 3.86:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #A3533F text on white | 5.43:1 | AA | Lc 76.7 | Fine for body text |
| #A3533F text on black | 3.86:1 | AA large text | Lc -25.1 | 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 600.
-
Step 50
50
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E3
oklch(93.6% 0.014 39.4)
-
Step 200
200
#EBD3CD
oklch(88.5% 0.028 34.3)
-
Step 300
300
#DFB6AB
oklch(81% 0.05 35.5)
-
Step 400
400
#CD8F7F
oklch(70.7% 0.08 35)
-
Step 500
500
#BF725F
oklch(63.2% 0.102 34.7)
-
Step 600
600 (this color)
#A3533F
oklch(53.5% 0.111 35.1)
-
Step 700
700
#924936
oklch(49.2% 0.103 35.6)
-
Step 800
800
#763C2D
oklch(42.6% 0.085 35.5)
-
Step 900
900
#603429
oklch(37.8% 0.066 34.9)
-
Step 950
950
#381F18
oklch(27% 0.041 36.4)
#A3533F 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) | #675F3D | 0.110 |
| Deuteranopia (no green cones) | #7B703E | 0.100 |
| Tritanopia (no blue cones) | #B2454E | 0.048 |
| Achromatopsia (no color) | #6A6A6A | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3533F
#A3533F
oklch(53.5% 0.111 35.1)
- #007B8F
#007B8F
oklch(53.6% 0.094 214.2)
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 #A3533F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.021
- Cinnamon #AC4F06 ΔE 0.043
- Sepia #985E2B ΔE 0.045
- Earth #A2653E ΔE 0.046
- Burnt Umber #A0450E ΔE 0.046
- Light Maroon #A24857 ΔE 0.049
- Dusty Red #B9484E ΔE 0.053
- Burnt Siena #B75203 ΔE 0.054
Use #A3533F 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.