#666237
Closest named color: Dark Moss Green (#606C38). oklch(48.9% 0.062 103.8), rgb(102, 98, 55).
Aa
White text reads best on this color (6.23:1).
About this color
#666237 is a medium-dark, muted brown. In OKLCH its lightness is 49%, its chroma 0.062 and its hue 104°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.031 away. White text reads best on it, at 6.23:1.
| Hue family | Browns |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.36:1 |
| White text | 6.23:1 |
Values
| HEX | #666237 |
| RGB | rgb(102, 98, 55) |
| HSL | hsl(55, 30%, 31%) |
| OKLCH | oklch(48.9% 0.062 103.8) |
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 #666237 | 6.23:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #666237 | 3.36:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #666237 text on white | 6.23:1 | AA | Lc 81.1 | Fine for body text |
| #666237 text on black | 3.36:1 | AA large text | Lc -20.8 | 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
#F6F6F2
oklch(97.2% 0.005 106.5)
-
Step 100
100
#EBEAE4
oklch(93.6% 0.008 98.9)
-
Step 200
200
#DBDACD
oklch(88.6% 0.018 103.2)
-
Step 300
300
#C3C2AC
oklch(80.9% 0.03 104.9)
-
Step 400
400
#A5A280
oklch(70.6% 0.047 103.3)
-
Step 500
500
#8F8C60
oklch(63.2% 0.062 104.7)
-
Step 600
600
#7A7546
oklch(55.5% 0.066 103)
-
Step 700
700 (this color)
#666237
oklch(48.9% 0.062 103.8)
-
Step 800
800
#54502E
oklch(42.6% 0.051 102.5)
-
Step 900
900
#454329
oklch(37.8% 0.041 104.4)
-
Step 950
950
#282719
oklch(26.9% 0.024 104.5)
#666237 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) | #695F34 | 0.009 |
| Deuteranopia (no green cones) | #6A6239 | 0.007 |
| Tritanopia (no blue cones) | #6C5D58 | 0.056 |
| Achromatopsia (no color) | #616161 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666237
#666237
oklch(48.9% 0.062 103.8)
- #5B5C83
#5B5C83
oklch(49% 0.062 282.7)
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 #666237, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.031
- Mud #735C12 ΔE 0.035
- Greeny Brown #696006 ΔE 0.038
- Dark Olive Green #556B2F ΔE 0.040
- Camo Green #526525 ΔE 0.042
- Mud Green #606602 ΔE 0.049
- Dirt Brown #836539 ΔE 0.051
- Olive Brown #645403 ΔE 0.051
Use #666237 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.