#A66F2B
Closest named color: Leather (#AC7434). oklch(58.7% 0.108 68.2), rgb(166, 111, 43).
Aa
Black text reads best on this color (4.93:1).
About this color
#A66F2B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.108 and its hue 68°. Its hue sits on the warm side of the wheel. The nearest named color is Leather (#AC7434), ΔE 0.018 away. Black text reads best on it, at 4.93:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.108) |
| Temperature | warm |
| Nearest name | Leather (#AC7434) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #A66F2B |
| RGB | rgb(166, 111, 43) |
| HSL | hsl(33, 59%, 41%) |
| OKLCH | oklch(58.7% 0.108 68.2) |
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 #A66F2B | 4.25:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #A66F2B | 4.93:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #A66F2B text on white | 4.25:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #A66F2B text on black | 4.93:1 | AA | Lc -32.4 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#F0E8E0
oklch(93.5% 0.014 67.7)
-
Step 200
200
#E5D6C7
oklch(88.4% 0.026 67.5)
-
Step 300
300
#D6BBA0
oklch(80.8% 0.048 67.1)
-
Step 400
400
#C1986B
oklch(70.7% 0.078 68.6)
-
Step 500
500
#B17E42
oklch(63.2% 0.1 68.7)
-
Step 600
600 (this color)
#A66F2B
oklch(58.7% 0.108 68.2)
-
Step 700
700
#855411
oklch(49% 0.1 68.2)
-
Step 800
800
#6C4513
oklch(42.6% 0.083 68.1)
-
Step 900
900
#583B17
oklch(37.8% 0.065 69.3)
-
Step 950
950
#34220F
oklch(27% 0.041 66)
#A66F2B 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) | #817322 | 0.066 |
| Deuteranopia (no green cones) | #8E802D | 0.058 |
| Tritanopia (no blue cones) | #B56261 | 0.085 |
| Achromatopsia (no color) | #7B7B7B | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66F2B
#A66F2B
oklch(58.7% 0.108 68.2)
- #4381B9
#4381B9
oklch(58.7% 0.108 247.9)
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 #A66F2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leather #AC7434 ΔE 0.018
- Caramel #AF6F09 ΔE 0.022
- Clay Brown #B2713D ΔE 0.029
- Umber #B26400 ΔE 0.032
- Brown Orange #B96902 ΔE 0.035
- Bronze #A87900 ΔE 0.038
- Orangey Brown #B16002 ΔE 0.038
- Earth #A2653E ΔE 0.038
Use #A66F2B 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.