#A3664E
Closest named color: Earth (#A2653E). oklch(57.1% 0.087 42.1), rgb(163, 102, 78).
Aa
White text reads best on this color (4.59:1).
About this color
#A3664E is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.087 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.019 away. White text reads best on it, at 4.59:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.56:1 |
| White text | 4.59:1 |
Values
| HEX | #A3664E |
| RGB | rgb(163, 102, 78) |
| HSL | hsl(17, 35%, 47%) |
| OKLCH | oklch(57.1% 0.087 42.1) |
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 #A3664E | 4.59:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #A3664E | 4.56:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #A3664E text on white | 4.59:1 | AA | Lc 71.7 | Content text, not long reading |
| #A3664E text on black | 4.56:1 | AA | Lc -29.9 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F1E8E4
oklch(93.7% 0.011 45.7)
-
Step 200
200
#E6D5CE
oklch(88.5% 0.021 43.8)
-
Step 300
300
#D8B9AD
oklch(80.9% 0.04 42.3)
-
Step 400
400
#C39482
oklch(70.6% 0.063 41.9)
-
Step 500
500
#B37963
oklch(63% 0.08 41.6)
-
Step 600
600 (this color)
#A3664E
oklch(57.1% 0.087 42.1)
-
Step 700
700
#87513B
oklch(49.2% 0.08 42.7)
-
Step 800
800
#6E4231
oklch(42.7% 0.067 41.8)
-
Step 900
900
#59382B
oklch(37.6% 0.052 42.3)
-
Step 950
950
#34211A
oklch(27% 0.032 41)
#A3664E 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) | #766D4C | 0.078 |
| Deuteranopia (no green cones) | #847A4D | 0.073 |
| Tritanopia (no blue cones) | #B05C60 | 0.047 |
| Achromatopsia (no color) | #757575 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3664E
#A3664E
oklch(57.1% 0.087 42.1)
- #31839C
#31839C
oklch(57.1% 0.086 221.7)
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 #A3664E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.019
- Clay #B66A50 ΔE 0.037
- Mocha #9D7651 ΔE 0.042
- Pinkish Brown #B17261 ΔE 0.044
- Sepia #985E2B ΔE 0.046
- Clay Brown #B2713D ΔE 0.049
- Copper #B66325 ΔE 0.049
- Reddish Grey #997570 ΔE 0.050
Use #A3664E 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.