#A66C07
Closest named color: Caramel (#AF6F09). oklch(57.9% 0.122 71.8), rgb(166, 108, 7).
Aa
Black text reads best on this color (4.76:1).
About this color
#A66C07 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.122 and its hue 72°. Its hue sits on the warm side of the wheel. The nearest named color is Caramel (#AF6F09), ΔE 0.019 away. Black text reads best on it, at 4.76:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.122) |
| Temperature | warm |
| Nearest name | Caramel (#AF6F09) |
| Black text | 4.76:1 |
| White text | 4.40:1 |
Values
| HEX | #A66C07 |
| RGB | rgb(166, 108, 7) |
| HSL | hsl(38, 92%, 34%) |
| OKLCH | oklch(57.9% 0.122 71.8) |
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 #A66C07 | 4.40:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #A66C07 | 4.76:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #A66C07 text on white | 4.40:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #A66C07 text on black | 4.76:1 | AA | Lc -31.5 | 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
#F9F5F0
oklch(97.2% 0.008 73.7)
-
Step 100
100
#F1E8DF
oklch(93.6% 0.016 67.6)
-
Step 200
200
#E6D6C4
oklch(88.4% 0.03 70.7)
-
Step 300
300
#D7BB9A
oklch(80.8% 0.055 71.5)
-
Step 400
400
#C39862
oklch(70.8% 0.088 72)
-
Step 500
500
#B37D32
oklch(63.1% 0.112 71.8)
-
Step 600
600 (this color)
#A66C07
oklch(57.9% 0.122 71.8)
-
Step 700
700
#855500
oklch(49.1% 0.105 71.8)
-
Step 800
800
#6D4500
oklch(42.6% 0.091 72)
-
Step 900
900
#593A0C
oklch(37.6% 0.073 71.8)
-
Step 950
950
#34220A
oklch(26.9% 0.046 71.3)
#A66C07 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) | #807000 | 0.067 |
| Deuteranopia (no green cones) | #8E7E0D | 0.060 |
| Tritanopia (no blue cones) | #B65D5C | 0.101 |
| Achromatopsia (no color) | #787878 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66C07
#A66C07
oklch(57.9% 0.122 71.8)
- #3E7DC0
#3E7DC0
oklch(58% 0.122 251.9)
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 #A66C07, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Caramel #AF6F09 ΔE 0.019
- Umber #B26400 ΔE 0.027
- Leather #AC7434 ΔE 0.032
- Orangey Brown #B16002 ΔE 0.033
- Brown Orange #B96902 ΔE 0.034
- Bronze #A87900 ΔE 0.035
- Raw Umber #A75E09 ΔE 0.035
- Raw Sienna #9A6200 ΔE 0.035
Use #A66C07 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.