#A66F4E
Closest named color: Mocha (#9D7651). oklch(59.2% 0.084 51.4), rgb(166, 111, 78).
Aa
Black text reads best on this color (5.00:1).
About this color
#A66F4E is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.084 and its hue 51°. Its hue sits on the warm side of the wheel. The nearest named color is Mocha (#9D7651), ΔE 0.022 away. Black text reads best on it, at 5.00:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.084) |
| Temperature | warm |
| Nearest name | Mocha (#9D7651) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #A66F4E |
| RGB | rgb(166, 111, 78) |
| HSL | hsl(22, 36%, 48%) |
| OKLCH | oklch(59.2% 0.084 51.4) |
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 #A66F4E | 4.19:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #A66F4E | 5.00:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #A66F4E text on white | 4.19:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #A66F4E text on black | 5.00:1 | AA | Lc -32.9 | 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
#F8F4F2
oklch(97% 0.005 48.7)
-
Step 100
100
#F0E8E3
oklch(93.6% 0.011 54.5)
-
Step 200
200
#E5D6CD
oklch(88.6% 0.021 53.2)
-
Step 300
300
#D6BAAB
oklch(80.9% 0.038 50)
-
Step 400
400
#C0967E
oklch(70.6% 0.061 51.1)
-
Step 500
500
#B07C5E
oklch(63.2% 0.078 50.8)
-
Step 600
600 (this color)
#A66F4E
oklch(59.2% 0.084 51.4)
-
Step 700
700
#845335
oklch(49.1% 0.079 51.5)
-
Step 800
800
#6B442D
oklch(42.6% 0.065 50.8)
-
Step 900
900
#573A28
oklch(37.7% 0.05 52.5)
-
Step 950
950
#332218
oklch(27% 0.032 51.4)
#A66F4E 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) | #7E744B | 0.068 |
| Deuteranopia (no green cones) | #8B804E | 0.062 |
| Tritanopia (no blue cones) | #B36567 | 0.054 |
| Achromatopsia (no color) | #7C7C7C | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66F4E
#A66F4E
oklch(59.2% 0.084 51.4)
- #4387A7
#4387A7
oklch(59.2% 0.084 230.9)
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 #A66F4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mocha #9D7651 ΔE 0.022
- Earth #A2653E ΔE 0.029
- Clay Brown #B2713D ΔE 0.029
- Clay #B66A50 ΔE 0.030
- Pinkish Brown #B17261 ΔE 0.032
- Leather #AC7434 ΔE 0.036
- Puce #A57E52 ΔE 0.039
- Adobe #BD6C48 ΔE 0.040
Use #A66F4E 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.