#666C48
Closest named color: Dark Moss Green (#606C38). oklch(51.6% 0.054 116), rgb(102, 108, 72).
Aa
White text reads best on this color (5.52:1).
About this color
#666C48 is a medium-dark, muted yellow. In OKLCH its lightness is 52%, its chroma 0.054 and its hue 116°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.024 away. White text reads best on it, at 5.52:1.
| Hue family | Yellows |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.054) |
| Temperature | in between |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #666C48 |
| RGB | rgb(102, 108, 72) |
| HSL | hsl(70, 20%, 35%) |
| OKLCH | oklch(51.6% 0.054 116) |
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 #666C48 | 5.52:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #666C48 | 3.80:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #666C48 text on white | 5.52:1 | AA | Lc 77.6 | Fine for body text |
| #666C48 text on black | 3.80:1 | AA large text | Lc -24.2 | 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
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#E9EAE5
oklch(93.5% 0.007 115.7)
-
Step 200
200
#D8DAD0
oklch(88.4% 0.014 115.9)
-
Step 300
300
#BFC3B0
oklch(80.9% 0.026 116.7)
-
Step 400
400
#9FA487
oklch(70.7% 0.041 115.4)
-
Step 500
500
#878E69
oklch(63.1% 0.053 116.7)
-
Step 600
600
#717850
oklch(55.6% 0.059 116.4)
-
Step 700
700 (this color)
#666C48
oklch(51.6% 0.054 116)
-
Step 800
800
#4D5236
oklch(42.6% 0.044 116.5)
-
Step 900
900
#40442F
oklch(37.7% 0.034 116.8)
-
Step 950
950
#26281C
oklch(27.1% 0.021 115.5)
#666C48 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) | #716846 | 0.019 |
| Deuteranopia (no green cones) | #70694A | 0.018 |
| Tritanopia (no blue cones) | #6A6863 | 0.047 |
| Achromatopsia (no color) | #696969 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666C48
#666C48
oklch(51.6% 0.054 116)
- #6A6284
#6A6284
oklch(51.7% 0.054 295.2)
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 #666C48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.024
- Muddy Green #657432 ΔE 0.042
- Dark Olive Green #556B2F ΔE 0.043
- Dark Taupe #7F684E ΔE 0.044
- Grey Brown #7F7053 ΔE 0.045
- Dirt Brown #836539 ΔE 0.048
- Brown Green #706C11 ΔE 0.053
- Dim Gray #696969 ΔE 0.054
Use #666C48 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.