#A0521F
Closest named color: Sienna (#A0522D). oklch(52.5% 0.121 49.9), rgb(160, 82, 31).
Aa
White text reads best on this color (5.64:1).
About this color
#A0521F is a medium-dark, moderately saturated brown. In OKLCH its lightness is 53%, its chroma 0.121 and its hue 50°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.012 away. White text reads best on it, at 5.64:1.
| Hue family | Browns |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.121) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.72:1 |
| White text | 5.64:1 |
Values
| HEX | #A0521F |
| RGB | rgb(160, 82, 31) |
| HSL | hsl(24, 68%, 37%) |
| OKLCH | oklch(52.5% 0.121 49.9) |
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 #A0521F | 5.64:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #A0521F | 3.72:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #A0521F text on white | 5.64:1 | AA | Lc 77.8 | Fine for body text |
| #A0521F text on black | 3.72:1 | AA large text | Lc -24.0 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F3E7E1
oklch(93.6% 0.015 48.6)
-
Step 200
200
#EBD4C8
oklch(88.6% 0.03 49.4)
-
Step 300
300
#DFB7A2
oklch(80.9% 0.055 49.2)
-
Step 400
400
#CD916F
oklch(70.8% 0.087 50.4)
-
Step 500
500
#BF7449
oklch(63.1% 0.111 49.6)
-
Step 600
600 (this color)
#A0521F
oklch(52.5% 0.121 49.9)
-
Step 700
700
#924A1C
oklch(49.1% 0.113 49.5)
-
Step 800
800
#763E1A
oklch(42.7% 0.092 50.5)
-
Step 900
900
#60351B
oklch(37.7% 0.073 50.2)
-
Step 950
950
#381F11
oklch(26.9% 0.046 49.2)
#A0521F 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) | #685C18 | 0.105 |
| Deuteranopia (no green cones) | #7B6E1E | 0.095 |
| Tritanopia (no blue cones) | #B04148 | 0.073 |
| Achromatopsia (no color) | #676767 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A0521F
#A0521F
oklch(52.5% 0.121 49.9)
- #00759B
#00759B
oklch(52.6% 0.105 229.7)
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 #A0521F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.012
- Cinnamon #AC4F06 ΔE 0.024
- Warm Brown #964E02 ΔE 0.027
- Burnt Umber #A0450E ΔE 0.028
- Sepia #985E2B ΔE 0.029
- Raw Umber #A75E09 ΔE 0.038
- Burnt Siena #B75203 ΔE 0.044
- Raw Sienna #9A6200 ΔE 0.047
Use #A0521F 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.