#A66759
Closest named color: Clay (#B66A50). oklch(57.9% 0.085 33.2), rgb(166, 103, 89).
Aa
Black text reads best on this color (4.70:1).
About this color
#A66759 is a medium-dark, moderately saturated red. In OKLCH its lightness is 58%, its chroma 0.085 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Clay (#B66A50), ΔE 0.033 away. Black text reads best on it, at 4.70:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Clay (#B66A50) |
| Black text | 4.70:1 |
| White text | 4.46:1 |
Values
| HEX | #A66759 |
| RGB | rgb(166, 103, 89) |
| HSL | hsl(11, 30%, 50%) |
| OKLCH | oklch(57.9% 0.085 33.2) |
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 #A66759 | 4.46:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #A66759 | 4.70:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #A66759 text on white | 4.46:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #A66759 text on black | 4.70:1 | AA | Lc -30.9 | Non-text elements, placeholder text |
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
#F1E7E5
oklch(93.5% 0.011 31.1)
-
Step 200
200
#E7D4D0
oklch(88.4% 0.022 31.8)
-
Step 300
300
#D8B8B1
oklch(80.8% 0.038 32.4)
-
Step 400
400
#C49388
oklch(70.7% 0.062 33)
-
Step 500
500
#B4786B
oklch(63.1% 0.079 32.8)
-
Step 600
600 (this color)
#A66759
oklch(57.9% 0.085 33.2)
-
Step 700
700
#884F43
oklch(49.1% 0.08 32.7)
-
Step 800
800
#6E4137
oklch(42.6% 0.065 33.3)
-
Step 900
900
#593730
oklch(37.6% 0.051 32.2)
-
Step 950
950
#34211C
oklch(27% 0.031 35.3)
#A66759 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) | #766F58 | 0.083 |
| Deuteranopia (no green cones) | #857C58 | 0.077 |
| Tritanopia (no blue cones) | #B35E63 | 0.037 |
| Achromatopsia (no color) | #777777 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66759
#A66759
oklch(57.9% 0.085 33.2)
- #308798
#308798
oklch(57.9% 0.085 213.1)
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 #A66759, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clay #B66A50 ΔE 0.033
- Earth #A2653E ΔE 0.035
- Pinkish Brown #B17261 ΔE 0.036
- Reddish Grey #997570 ΔE 0.043
- Mocha #9D7651 ΔE 0.047
- Adobe #BD6C48 ΔE 0.050
- Dusky Rose #BA6873 ΔE 0.053
- Clay Brown #B2713D ΔE 0.054
Use #A66759 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.