#66613D
Closest named color: Dark Moss Green (#606C38). oklch(48.8% 0.053 101.3), rgb(102, 97, 61).
Aa
White text reads best on this color (6.28:1).
About this color
#66613D is a medium-dark, muted brown. In OKLCH its lightness is 49%, its chroma 0.053 and its hue 101°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.037 away. White text reads best on it, at 6.28:1.
| Hue family | Browns |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #66613D |
| RGB | rgb(102, 97, 61) |
| HSL | hsl(53, 25%, 32%) |
| OKLCH | oklch(48.8% 0.053 101.3) |
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 #66613D | 6.28:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #66613D | 3.34:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #66613D text on white | 6.28:1 | AA | Lc 81.3 | Fine for body text |
| #66613D 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
#EBEAE4
oklch(93.6% 0.008 98.9)
-
Step 200
200
#DBDACF
oklch(88.6% 0.015 102.5)
-
Step 300
300
#C4C1AF
oklch(80.8% 0.025 99.2)
-
Step 400
400
#A6A285
oklch(70.8% 0.041 100.9)
-
Step 500
500
#908B66
oklch(63.1% 0.053 101.3)
-
Step 600
600
#7A754D
oklch(55.7% 0.058 102)
-
Step 700
700 (this color)
#66613D
oklch(48.8% 0.053 101.3)
-
Step 800
800
#545033
oklch(42.7% 0.045 101.3)
-
Step 900
900
#45422D
oklch(37.6% 0.034 101)
-
Step 950
950
#29271B
oklch(27.1% 0.021 99.7)
#66613D 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) | #675F3A | 0.006 |
| Deuteranopia (no green cones) | #69613E | 0.005 |
| Tritanopia (no blue cones) | #6C5C58 | 0.049 |
| Achromatopsia (no color) | #606060 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66613D
#66613D
oklch(48.8% 0.053 101.3)
- #5A5C7E
#5A5C7E
oklch(48.7% 0.054 281.6)
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 #66613D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.037
- Mud #735C12 ΔE 0.041
- Greeny Brown #696006 ΔE 0.046
- Dark Olive Green #556B2F ΔE 0.048
- Camo Green #526525 ΔE 0.049
- Dirt Brown #836539 ΔE 0.051
- Dark Taupe #7F684E ΔE 0.053
- Olive Brown #645403 ΔE 0.055
Use #66613D 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.