#A66E45
Closest named color: Mocha (#9D7651). oklch(58.8% 0.091 56.1), rgb(166, 110, 69).
Aa
Black text reads best on this color (4.93:1).
About this color
#A66E45 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.091 and its hue 56°. Its hue sits on the warm side of the wheel. The nearest named color is Mocha (#9D7651), ΔE 0.024 away. Black text reads best on it, at 4.93:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Mocha (#9D7651) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #A66E45 |
| RGB | rgb(166, 110, 69) |
| HSL | hsl(25, 41%, 46%) |
| OKLCH | oklch(58.8% 0.091 56.1) |
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 #A66E45 | 4.25:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #A66E45 | 4.93:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #A66E45 text on white | 4.25:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #A66E45 text on black | 4.93:1 | AA | Lc -32.5 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#F0E8E2
oklch(93.6% 0.012 59.6)
-
Step 200
200
#E6D6CB
oklch(88.6% 0.023 56.9)
-
Step 300
300
#D6BAA8
oklch(80.8% 0.041 54.7)
-
Step 400
400
#C19679
oklch(70.6% 0.066 55.4)
-
Step 500
500
#B17C57
oklch(63.1% 0.084 55.5)
-
Step 600
600 (this color)
#A66E45
oklch(58.8% 0.091 56.1)
-
Step 700
700
#85532E
oklch(49.1% 0.084 55.7)
-
Step 800
800
#6C4427
oklch(42.6% 0.07 55.5)
-
Step 900
900
#583A24
oklch(37.8% 0.055 56.5)
-
Step 950
950
#332216
oklch(26.9% 0.033 56)
#A66E45 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) | #7E7341 | 0.069 |
| Deuteranopia (no green cones) | #8C8045 | 0.063 |
| Tritanopia (no blue cones) | #B46364 | 0.062 |
| Achromatopsia (no color) | #7B7B7B | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66E45
#A66E45
oklch(58.8% 0.091 56.1)
- #4185AC
#4185AC
oklch(58.9% 0.091 236.3)
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 #A66E45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mocha #9D7651 ΔE 0.024
- Earth #A2653E ΔE 0.024
- Clay Brown #B2713D ΔE 0.025
- Leather #AC7434 ΔE 0.029
- Clay #B66A50 ΔE 0.035
- Copper #B66325 ΔE 0.039
- Puce #A57E52 ΔE 0.040
- Pinkish Brown #B17261 ΔE 0.041
Use #A66E45 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.