#663302
Closest named color: Chestnut (#742802). oklch(38% 0.091 56.1), rgb(102, 51, 2).
Aa
White text reads best on this color (10.29:1).
About this color
#663302 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.091 and its hue 56°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.036 away. White text reads best on it, at 10.29:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.03:1 |
| White text | 10.29:1 |
Values
| HEX | #663302 |
| RGB | rgb(102, 51, 2) |
| HSL | hsl(29, 96%, 20%) |
| OKLCH | oklch(38% 0.091 56.1) |
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 #663302 | 10.29:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #663302 | 2.03:1 | Fails | Lc 10.5 | Not readable |
| #663302 text on white | 10.29:1 | AAA | Lc 93.5 | Preferred for body text |
| #663302 text on black | 2.03:1 | Fails | Lc -9.0 | 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
#EED3C2
oklch(88.5% 0.038 54.3)
-
Step 300
300
#E4B696
oklch(81% 0.069 56.4)
-
Step 400
400
#D58E5A
oklch(70.8% 0.11 56.1)
-
Step 500
500
#C86F22
oklch(63.1% 0.141 55.9)
-
Step 600
600
#AD5A00
oklch(55.6% 0.136 56.3)
-
Step 700
700
#924B00
oklch(49.1% 0.12 56.3)
-
Step 800
800
#793D00
oklch(42.8% 0.105 56.2)
-
Step 900
900 (this color)
#663302
oklch(38% 0.091 56.1)
-
Step 950
950
#3B1E06
oklch(27% 0.057 56.5)
#663302 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) | #4E4501 | 0.066 |
| Tritanopia (no blue cones) | #71272B | 0.062 |
| Achromatopsia (no color) | #404040 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #663302
#663302
oklch(38% 0.091 56.1)
- #004868
#004868
oklch(38% 0.082 236.3)
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 #663302, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.036
- Mud Brown #60460F ΔE 0.051
- Purple Brown #673A3F ΔE 0.067
- Reddy Brown #6E1005 ΔE 0.068
- Rust Brown #8B3103 ΔE 0.077
- Red Brown #8B2E16 ΔE 0.079
- Blood #770001 ΔE 0.081
- Green Brown #544E03 ΔE 0.081
Use #663302 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.