#A1663F
Closest named color: Earth (#A2653E). oklch(56.6% 0.093 53.2), rgb(161, 102, 63).
Aa
White text reads best on this color (4.67:1).
About this color
#A1663F is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.093 and its hue 53°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.003 away. White text reads best on it, at 4.67:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.093) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.48:1 |
| White text | 4.67:1 |
Values
| HEX | #A1663F |
| RGB | rgb(161, 102, 63) |
| HSL | hsl(24, 44%, 44%) |
| OKLCH | oklch(56.6% 0.093 53.2) |
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 #A1663F | 4.67:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #A1663F | 4.48:1 | AA large text | Lc 31.8 | Non-text elements, placeholder text |
| #A1663F text on white | 4.67:1 | AA | Lc 72.3 | Content text, not long reading |
| #A1663F text on black | 4.48:1 | AA large text | Lc -29.4 | 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F1E8E2
oklch(93.6% 0.013 56.2)
-
Step 200
200
#E6D5CB
oklch(88.4% 0.023 52.7)
-
Step 300
300
#D7BAA8
oklch(80.9% 0.042 53.8)
-
Step 400
400
#C39679
oklch(70.8% 0.068 54.1)
-
Step 500
500
#B37B57
oklch(63.2% 0.086 53.3)
-
Step 600
600 (this color)
#A1663F
oklch(56.6% 0.093 53.2)
-
Step 700
700
#87522E
oklch(49.2% 0.087 53.4)
-
Step 800
800
#6E4327
oklch(42.7% 0.073 52.7)
-
Step 900
900
#593924
oklch(37.7% 0.056 53.5)
-
Step 950
950
#342216
oklch(27.1% 0.035 54.4)
#A1663F 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) | #776C3C | 0.074 |
| Deuteranopia (no green cones) | #85793F | 0.067 |
| Tritanopia (no blue cones) | #AF5A5D | 0.062 |
| Achromatopsia (no color) | #747474 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1663F
#A1663F
oklch(56.6% 0.093 53.2)
- #337FA4
#337FA4
oklch(56.6% 0.093 233.1)
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 #A1663F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.003
- Sepia #985E2B ΔE 0.032
- Raw Umber #A75E09 ΔE 0.038
- Mocha #9D7651 ΔE 0.040
- Copper #B66325 ΔE 0.041
- Dirt #8A6E45 ΔE 0.042
- Orangey Brown #B16002 ΔE 0.044
- Clay Brown #B2713D ΔE 0.044
Use #A1663F 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.