#666140
Closest named color: Dark Moss Green (#606C38). oklch(48.8% 0.049 100.6), rgb(102, 97, 64).
Aa
White text reads best on this color (6.27:1).
About this color
#666140 is a medium-dark, muted brown. In OKLCH its lightness is 49%, its chroma 0.049 and its hue 101°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.039 away. White text reads best on it, at 6.27:1.
| Hue family | Browns |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.049) |
| Temperature | warm |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.34:1 |
| White text | 6.27:1 |
Values
| HEX | #666140 |
| RGB | rgb(102, 97, 64) |
| HSL | hsl(52, 23%, 33%) |
| OKLCH | oklch(48.8% 0.049 100.6) |
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 #666140 | 6.27:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #666140 | 3.34:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #666140 text on white | 6.27:1 | AA | Lc 81.2 | Fine for body text |
| #666140 text on black | 3.34:1 | AA large text | Lc -20.6 | 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 700.
-
Step 50
50
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE5
oklch(93.6% 0.007 97.4)
-
Step 200
200
#DBD9D0
oklch(88.4% 0.012 96.4)
-
Step 300
300
#C4C1B0
oklch(80.9% 0.024 98.7)
-
Step 400
400
#A5A287
oklch(70.7% 0.038 102.1)
-
Step 500
500
#908B69
oklch(63.2% 0.049 100.6)
-
Step 600
600
#7A7450
oklch(55.5% 0.052 99.8)
-
Step 700
700 (this color)
#666140
oklch(48.8% 0.049 100.6)
-
Step 800
800
#545036
oklch(42.8% 0.04 100.5)
-
Step 900
900
#45422F
oklch(37.6% 0.031 100.2)
-
Step 950
950
#28271B
oklch(27% 0.021 103.7)
#666140 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) | #675F3E | 0.006 |
| Deuteranopia (no green cones) | #696141 | 0.005 |
| Tritanopia (no blue cones) | #6B5D59 | 0.044 |
| Achromatopsia (no color) | #606060 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666140
#666140
oklch(48.8% 0.049 100.6)
- #5A5D7C
#5A5D7C
oklch(48.8% 0.05 280.1)
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 #666140, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.039
- Mud #735C12 ΔE 0.044
- Greeny Brown #696006 ΔE 0.050
- Dark Olive Green #556B2F ΔE 0.050
- Dark Taupe #7F684E ΔE 0.051
- Dirt Brown #836539 ΔE 0.051
- Camo Green #526525 ΔE 0.052
- Cocoa #875F42 ΔE 0.057
Use #666140 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.