#A66748
Closest named color: Earth (#A2653E). oklch(57.6% 0.093 46.6), rgb(166, 103, 72).
Aa
Black text reads best on this color (4.65:1).
About this color
#A66748 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.093 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.014 away. Black text reads best on it, at 4.65:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.093) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.65:1 |
| White text | 4.51:1 |
Values
| HEX | #A66748 |
| RGB | rgb(166, 103, 72) |
| HSL | hsl(20, 39%, 47%) |
| OKLCH | oklch(57.6% 0.093 46.6) |
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 #A66748 | 4.51:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #A66748 | 4.65:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #A66748 text on white | 4.51:1 | AA | Lc 71.1 | Content text, not long reading |
| #A66748 text on black | 4.65:1 | AA | Lc -30.6 | 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
#F1E8E3
oklch(93.7% 0.012 51.3)
-
Step 200
200
#E7D5CC
oklch(88.5% 0.024 48.4)
-
Step 300
300
#D8B9AA
oklch(80.8% 0.041 47.4)
-
Step 400
400
#C4947D
oklch(70.6% 0.067 46.8)
-
Step 500
500
#B4795C
oklch(63% 0.085 46.9)
-
Step 600
600 (this color)
#A66748
oklch(57.6% 0.093 46.6)
-
Step 700
700
#885034
oklch(49% 0.086 46.6)
-
Step 800
800
#6F422C
oklch(42.7% 0.071 46.3)
-
Step 900
900
#5A3827
oklch(37.7% 0.056 47.1)
-
Step 950
950
#352117
oklch(27% 0.036 47.3)
#A66748 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) | #786E45 | 0.080 |
| Deuteranopia (no green cones) | #877C48 | 0.074 |
| Tritanopia (no blue cones) | #B45C5F | 0.053 |
| Achromatopsia (no color) | #767676 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66748
#A66748
oklch(57.6% 0.093 46.6)
- #2F84A3
#2F84A3
oklch(57.6% 0.092 226.2)
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 #A66748, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.014
- Clay #B66A50 ΔE 0.032
- Mocha #9D7651 ΔE 0.039
- Clay Brown #B2713D ΔE 0.040
- Copper #B66325 ΔE 0.040
- Pinkish Brown #B17261 ΔE 0.043
- Adobe #BD6C48 ΔE 0.045
- Sepia #985E2B ΔE 0.045
Use #A66748 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.