#A3510D
Closest named color: Cinnamon (#AC4F06). oklch(52.7% 0.13 52.3), rgb(163, 81, 13).
Aa
White text reads best on this color (5.61:1).
About this color
#A3510D is a medium-dark, moderately saturated brown. In OKLCH its lightness is 53%, its chroma 0.130 and its hue 52°. Its hue sits on the warm side of the wheel. The nearest named color is Cinnamon (#AC4F06), ΔE 0.017 away. White text reads best on it, at 5.61:1.
| Hue family | Browns |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.130) |
| Temperature | warm |
| Nearest name | Cinnamon (#AC4F06) |
| Black text | 3.74:1 |
| White text | 5.61:1 |
Values
| HEX | #A3510D |
| RGB | rgb(163, 81, 13) |
| HSL | hsl(27, 85%, 35%) |
| OKLCH | oklch(52.7% 0.13 52.3) |
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 #A3510D | 5.61:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #A3510D | 3.74:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #A3510D text on white | 5.61:1 | AA | Lc 77.5 | Fine for body text |
| #A3510D text on black | 3.74:1 | AA large text | Lc -24.2 | 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
#F4E7E0
oklch(93.6% 0.017 50.4)
-
Step 200
200
#EBD4C6
oklch(88.5% 0.032 53.5)
-
Step 300
300
#E0B79E
oklch(80.9% 0.059 53)
-
Step 400
400
#CF9069
oklch(70.7% 0.093 52.4)
-
Step 500
500
#C1733F
oklch(63.1% 0.119 52.5)
-
Step 600
600 (this color)
#A3510D
oklch(52.7% 0.13 52.3)
-
Step 700
700
#94490B
oklch(49.1% 0.121 52.3)
-
Step 800
800
#783C0F
oklch(42.6% 0.1 52)
-
Step 900
900
#613415
oklch(37.6% 0.078 52.4)
-
Step 950
950
#391F0E
oklch(27% 0.049 52.4)
#A3510D 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) | #695C00 | 0.110 |
| Deuteranopia (no green cones) | #7D6F0A | 0.099 |
| Tritanopia (no blue cones) | #B33E45 | 0.080 |
| Achromatopsia (no color) | #676767 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3510D
#A3510D
oklch(52.7% 0.13 52.3)
- #00749E
#00749E
oklch(52.5% 0.108 232.5)
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 #A3510D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cinnamon #AC4F06 ΔE 0.017
- Sienna #A0522D ΔE 0.022
- Warm Brown #964E02 ΔE 0.028
- Burnt Umber #A0450E ΔE 0.029
- Raw Umber #A75E09 ΔE 0.033
- Sepia #985E2B ΔE 0.034
- Burnt Siena #B75203 ΔE 0.039
- Raw Sienna #9A6200 ΔE 0.045
Use #A3510D 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.