#A66548
Closest named color: Earth (#A2653E). oklch(57.2% 0.094 44.5), rgb(166, 101, 72).
Aa
White text reads best on this color (4.58:1).
About this color
#A66548 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.094 and its hue 44°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.015 away. White text reads best on it, at 4.58:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.094) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.57:1 |
| White text | 4.58:1 |
Values
| HEX | #A66548 |
| RGB | rgb(166, 101, 72) |
| HSL | hsl(19, 39%, 47%) |
| OKLCH | oklch(57.2% 0.094 44.5) |
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 #A66548 | 4.58:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #A66548 | 4.57:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #A66548 text on white | 4.58:1 | AA | Lc 71.6 | Content text, not long reading |
| #A66548 text on black | 4.57:1 | AA | Lc -30.0 | 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
#F1E7E3
oklch(93.5% 0.012 43.3)
-
Step 200
200
#E7D5CD
oklch(88.5% 0.023 45.6)
-
Step 300
300
#D9B9AB
oklch(81% 0.042 45)
-
Step 400
400
#C5947E
oklch(70.8% 0.067 45.3)
-
Step 500
500
#B6785D
oklch(63.1% 0.087 44.3)
-
Step 600
600 (this color)
#A66548
oklch(57.2% 0.094 44.5)
-
Step 700
700
#8A4F35
oklch(49.1% 0.089 44)
-
Step 800
800
#70412C
oklch(42.7% 0.073 44.4)
-
Step 900
900
#5B3828
oklch(37.8% 0.057 45.2)
-
Step 950
950
#352118
oklch(27% 0.035 45)
#A66548 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) | #766D46 | 0.084 |
| Deuteranopia (no green cones) | #867B47 | 0.078 |
| Tritanopia (no blue cones) | #B4595E | 0.054 |
| Achromatopsia (no color) | #757575 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66548
#A66548
oklch(57.2% 0.094 44.5)
- #2983A1
#2983A1
oklch(57.1% 0.094 224.7)
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 #A66548, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.015
- Clay #B66A50 ΔE 0.034
- Copper #B66325 ΔE 0.041
- Mocha #9D7651 ΔE 0.043
- Sepia #985E2B ΔE 0.044
- Clay Brown #B2713D ΔE 0.044
- Pinkish Brown #B17261 ΔE 0.046
- Adobe #BD6C48 ΔE 0.047
Use #A66548 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.