#A66641
Closest named color: Earth (#A2653E). oklch(57.3% 0.097 49.9), rgb(166, 102, 65).
Aa
Black text reads best on this color (4.59:1).
About this color
#A66641 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.097 and its hue 50°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.009 away. Black text reads best on it, at 4.59:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.097) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #A66641 |
| RGB | rgb(166, 102, 65) |
| HSL | hsl(22, 44%, 45%) |
| OKLCH | oklch(57.3% 0.097 49.9) |
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 #A66641 | 4.56:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #A66641 | 4.59:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #A66641 text on white | 4.56:1 | AA | Lc 71.5 | Content text, not long reading |
| #A66641 text on black | 4.59:1 | AA | Lc -30.2 | 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F1E8E2
oklch(93.6% 0.013 56.2)
-
Step 200
200
#E7D5CB
oklch(88.5% 0.024 51.1)
-
Step 300
300
#D9B9A8
oklch(80.9% 0.044 49.7)
-
Step 400
400
#C59479
oklch(70.6% 0.071 50.1)
-
Step 500
500
#B57957
oklch(63% 0.089 50.1)
-
Step 600
600 (this color)
#A66641
oklch(57.3% 0.097 49.9)
-
Step 700
700
#89502E
oklch(49% 0.09 50.2)
-
Step 800
800
#704227
oklch(42.8% 0.075 50.1)
-
Step 900
900
#5B3824
oklch(37.8% 0.059 50)
-
Step 950
950
#352116
oklch(27% 0.037 49.5)
#A66641 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) | #786D3E | 0.081 |
| Deuteranopia (no green cones) | #877B41 | 0.074 |
| Tritanopia (no blue cones) | #B45A5D | 0.060 |
| Achromatopsia (no color) | #767676 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66641
#A66641
oklch(57.3% 0.097 49.9)
- #2C82A6
#2C82A6
oklch(57.2% 0.097 230)
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 #A66641, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.009
- Copper #B66325 ΔE 0.035
- Clay #B66A50 ΔE 0.036
- Clay Brown #B2713D ΔE 0.039
- Sepia #985E2B ΔE 0.040
- Raw Umber #A75E09 ΔE 0.040
- Mocha #9D7651 ΔE 0.041
- Orangey Brown #B16002 ΔE 0.042
Use #A66641 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.