#A66623
Closest named color: Raw Umber (#A75E09). oklch(56.9% 0.114 62.4), rgb(166, 102, 35).
Aa
White text reads best on this color (4.61:1).
About this color
#A66623 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.114 and its hue 62°. Its hue sits on the warm side of the wheel. The nearest named color is Raw Umber (#A75E09), ΔE 0.020 away. White text reads best on it, at 4.61:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Raw Umber (#A75E09) |
| Black text | 4.54:1 |
| White text | 4.61:1 |
Values
| HEX | #A66623 |
| RGB | rgb(166, 102, 35) |
| HSL | hsl(31, 65%, 39%) |
| OKLCH | oklch(56.9% 0.114 62.4) |
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 #A66623 | 4.61:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #A66623 | 4.54:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #A66623 text on white | 4.61:1 | AA | Lc 71.8 | Content text, not long reading |
| #A66623 text on black | 4.54:1 | AA | Lc -29.9 | Dividers and decoration only |
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
#F9F4F1
oklch(97% 0.007 53.4)
-
Step 100
100
#F1E8E0
oklch(93.6% 0.015 64.3)
-
Step 200
200
#E7D5C6
oklch(88.4% 0.029 62.3)
-
Step 300
300
#D9BA9F
oklch(80.9% 0.051 63.1)
-
Step 400
400
#C6956A
oklch(70.7% 0.083 62.1)
-
Step 500
500
#B67A41
oklch(63% 0.105 62.5)
-
Step 600
600 (this color)
#A66623
oklch(56.9% 0.114 62.4)
-
Step 700
700
#8A510F
oklch(49.1% 0.106 62.7)
-
Step 800
800
#704311
oklch(42.7% 0.087 63.4)
-
Step 900
900
#5B3917
oklch(37.8% 0.068 63)
-
Step 950
950
#35210E
oklch(26.8% 0.043 62.7)
#A66623 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) | #7A6C19 | 0.080 |
| Deuteranopia (no green cones) | #897B24 | 0.072 |
| Tritanopia (no blue cones) | #B65759 | 0.086 |
| Achromatopsia (no color) | #757575 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66623
#A66623
oklch(56.9% 0.114 62.4)
- #2D7EB4
#2D7EB4
oklch(56.9% 0.113 242.2)
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 #A66623, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raw Umber #A75E09 ΔE 0.020
- Orangey Brown #B16002 ΔE 0.023
- Umber #B26400 ΔE 0.024
- Earth #A2653E ΔE 0.027
- Copper #B66325 ΔE 0.030
- Raw Sienna #9A6200 ΔE 0.030
- Caramel #AF6F09 ΔE 0.034
- Sepia #985E2B ΔE 0.036
Use #A66623 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.