#666646
Closest named color: Dark Moss Green (#606C38). oklch(50.2% 0.048 108), rgb(102, 102, 70).
Aa
White text reads best on this color (5.90:1).
About this color
#666646 is a medium-dark, muted yellow. In OKLCH its lightness is 50%, its chroma 0.048 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.032 away. White text reads best on it, at 5.90:1.
| Hue family | Yellows |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.048) |
| Temperature | warm |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #666646 |
| RGB | rgb(102, 102, 70) |
| HSL | hsl(60, 19%, 34%) |
| OKLCH | oklch(50.2% 0.048 108) |
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 #666646 | 5.90:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #666646 | 3.55:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #666646 text on white | 5.90:1 | AA | Lc 79.6 | Fine for body text |
| #666646 text on black | 3.55:1 | AA large text | Lc -22.3 | 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
#EAEAE5
oklch(93.6% 0.007 106.5)
-
Step 200
200
#DADAD0
oklch(88.6% 0.013 106.7)
-
Step 300
300
#C2C2B1
oklch(80.9% 0.023 106.9)
-
Step 400
400
#A2A388
oklch(70.7% 0.038 109.1)
-
Step 500
500
#8C8C6B
oklch(63.1% 0.047 107.7)
-
Step 600
600
#767653
oklch(55.6% 0.051 107.9)
-
Step 700
700 (this color)
#666646
oklch(50.2% 0.048 108)
-
Step 800
800
#515137
oklch(42.8% 0.04 108)
-
Step 900
900
#434330
oklch(37.7% 0.031 107.8)
-
Step 950
950
#27271C
oklch(26.9% 0.019 107.6)
#666646 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) | #6B6344 | 0.011 |
| Deuteranopia (no green cones) | #6C6547 | 0.010 |
| Tritanopia (no blue cones) | #6B625E | 0.043 |
| Achromatopsia (no color) | #646464 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666646
#666646
oklch(50.2% 0.048 108)
- #62607E
#62607E
oklch(50.2% 0.047 287.6)
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 #666646, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.032
- Dark Taupe #7F684E ΔE 0.044
- Dark Olive Green #556B2F ΔE 0.047
- Dirt Brown #836539 ΔE 0.048
- Dim Gray #696969 ΔE 0.051
- Mud #735C12 ΔE 0.052
- Grey Brown #7F7053 ΔE 0.054
- Camo Green #526525 ΔE 0.054
Use #666646 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.