#A6633E
Closest named color: Earth (#A2653E). oklch(56.7% 0.101 48.7), rgb(166, 99, 62).
Aa
White text reads best on this color (4.69:1).
About this color
#A6633E is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.101 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.008 away. White text reads best on it, at 4.69:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.101) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.47:1 |
| White text | 4.69:1 |
Values
| HEX | #A6633E |
| RGB | rgb(166, 99, 62) |
| HSL | hsl(21, 46%, 45%) |
| OKLCH | oklch(56.7% 0.101 48.7) |
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 #A6633E | 4.69:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #A6633E | 4.47:1 | AA large text | Lc 31.8 | Non-text elements, placeholder text |
| #A6633E text on white | 4.69:1 | AA | Lc 72.3 | Content text, not long reading |
| #A6633E text on black | 4.47:1 | AA large text | Lc -29.4 | 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F2E7E2
oklch(93.5% 0.014 46.2)
-
Step 200
200
#E8D5CB
oklch(88.6% 0.025 49.7)
-
Step 300
300
#DAB9A7
oklch(81% 0.046 50.3)
-
Step 400
400
#C79379
oklch(70.7% 0.073 47.7)
-
Step 500
500
#B77856
oklch(63.1% 0.093 48.8)
-
Step 600
600 (this color)
#A6633E
oklch(56.7% 0.101 48.7)
-
Step 700
700
#8B4F2D
oklch(49.1% 0.094 48.9)
-
Step 800
800
#714126
oklch(42.7% 0.078 49)
-
Step 900
900
#5C3724
oklch(37.7% 0.061 47.5)
-
Step 950
950
#362115
oklch(27.1% 0.039 50.3)
#A6633E 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) | #766B3B | 0.085 |
| Deuteranopia (no green cones) | #867A3E | 0.079 |
| Tritanopia (no blue cones) | #B5565A | 0.061 |
| Achromatopsia (no color) | #747474 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A6633E
#A6633E
oklch(56.7% 0.101 48.7)
- #2181A5
#2181A5
oklch(56.6% 0.101 228.6)
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 #A6633E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.008
- Copper #B66325 ΔE 0.035
- Sepia #985E2B ΔE 0.035
- Raw Umber #A75E09 ΔE 0.037
- Clay #B66A50 ΔE 0.040
- Orangey Brown #B16002 ΔE 0.040
- Sienna #A0522D ΔE 0.043
- Umber #B26400 ΔE 0.044
Use #A6633E 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.