#664730
Closest named color: Mud Brown (#60460F). oklch(42.6% 0.055 57.2), rgb(102, 71, 48).
Aa
White text reads best on this color (8.37:1).
About this color
#664730 is a dark, muted brown. In OKLCH its lightness is 43%, its chroma 0.055 and its hue 57°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.038 away. White text reads best on it, at 8.37:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | muted (0.055) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.50:1 |
| White text | 8.37:1 |
Values
| HEX | #664730 |
| RGB | rgb(102, 71, 48) |
| HSL | hsl(26, 36%, 29%) |
| OKLCH | oklch(42.6% 0.055 57.2) |
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 #664730 | 8.37:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #664730 | 2.50:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #664730 text on white | 8.37:1 | AAA | Lc 88.8 | Fine for body text |
| #664730 text on black | 2.50:1 | Fails | Lc -13.4 | 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 800.
-
Step 50
50
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E4
oklch(93.5% 0.009 52.1)
-
Step 200
200
#E3D6CE
oklch(88.4% 0.018 54)
-
Step 300
300
#D1BCAD
oklch(80.9% 0.032 57.8)
-
Step 400
400
#BA9981
oklch(70.7% 0.052 57.8)
-
Step 500
500
#A98062
oklch(63.2% 0.066 57.4)
-
Step 600
600
#946949
oklch(55.8% 0.072 57.3)
-
Step 700
700
#7E573A
oklch(49.2% 0.067 57.1)
-
Step 800
800 (this color)
#664730
oklch(42.6% 0.055 57.2)
-
Step 900
900
#533C2B
oklch(37.7% 0.042 57.5)
-
Step 950
950
#312319
oklch(27% 0.028 56.8)
#664730 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) | #504A2E | 0.041 |
| Deuteranopia (no green cones) | #575030 | 0.036 |
| Tritanopia (no blue cones) | #6E4141 | 0.038 |
| Achromatopsia (no color) | #4E4E4E | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664730
#664730
oklch(42.6% 0.055 57.2)
- #305369
#305369
oklch(42.5% 0.055 237.6)
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 #664730, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.038
- Purple Brown #673A3F ΔE 0.050
- Milk Chocolate #7F4E1E ΔE 0.057
- Brownish Purple #76424E ΔE 0.061
- Olive Brown #645403 ΔE 0.063
- Green Brown #544E03 ΔE 0.064
- Medium Brown #7F5112 ΔE 0.066
- Saddle Brown #8B4513 ΔE 0.073
Use #664730 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.