#663201
Closest named color: Chestnut (#742802). oklch(37.9% 0.093 55.4), rgb(102, 50, 1).
Aa
White text reads best on this color (10.38:1).
About this color
#663201 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.093 and its hue 55°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.035 away. White text reads best on it, at 10.38:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.093) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.02:1 |
| White text | 10.38:1 |
Values
| HEX | #663201 |
| RGB | rgb(102, 50, 1) |
| HSL | hsl(29, 98%, 20%) |
| OKLCH | oklch(37.9% 0.093 55.4) |
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 #663201 | 10.38:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #663201 | 2.02:1 | Fails | Lc 10.3 | Not readable |
| #663201 text on white | 10.38:1 | AAA | Lc 93.6 | Preferred for body text |
| #663201 text on black | 2.02:1 | Fails | Lc -8.9 | Not readable |
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 900.
-
Step 50
50
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F5E7DD
oklch(93.6% 0.02 58.1)
-
Step 200
200
#EED3C1
oklch(88.5% 0.039 55.8)
-
Step 300
300
#E4B596
oklch(80.8% 0.069 54.9)
-
Step 400
400
#D68D5A
oklch(70.7% 0.111 54.8)
-
Step 500
500
#C96F22
oklch(63.2% 0.142 55.5)
-
Step 600
600
#AE5900
oklch(55.6% 0.137 55.3)
-
Step 700
700
#934A00
oklch(49.1% 0.121 55.1)
-
Step 800
800
#793C00
oklch(42.6% 0.105 55.3)
-
Step 900
900 (this color)
#663201
oklch(37.9% 0.093 55.4)
-
Step 950
950
#3C1E06
oklch(27.2% 0.058 55.5)
#663201 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) | #423900 | 0.073 |
| Deuteranopia (no green cones) | #4E4500 | 0.068 |
| Tritanopia (no blue cones) | #71262A | 0.061 |
| Achromatopsia (no color) | #404040 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #663201
#663201
oklch(37.9% 0.093 55.4)
- #004867
#004867
oklch(37.9% 0.081 235.5)
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 #663201, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.035
- Mud Brown #60460F ΔE 0.053
- Reddy Brown #6E1005 ΔE 0.066
- Purple Brown #673A3F ΔE 0.068
- Rust Brown #8B3103 ΔE 0.077
- Blood #770001 ΔE 0.079
- Red Brown #8B2E16 ΔE 0.080
- Maroon #800000 ΔE 0.082
Use #663201 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.