#66664A
Closest named color: Dark Moss Green (#606C38). oklch(50.2% 0.042 107.8), rgb(102, 102, 74).
Aa
White text reads best on this color (5.89:1).
About this color
#66664A is a medium-dark, muted yellow. In OKLCH its lightness is 50%, its chroma 0.042 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.037 away. White text reads best on it, at 5.89:1.
| Hue family | Yellows |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.56:1 |
| White text | 5.89:1 |
Values
| HEX | #66664A |
| RGB | rgb(102, 102, 74) |
| HSL | hsl(60, 16%, 35%) |
| OKLCH | oklch(50.2% 0.042 107.8) |
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 #66664A | 5.89:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #66664A | 3.56:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #66664A text on white | 5.89:1 | AA | Lc 79.5 | Fine for body text |
| #66664A text on black | 3.56:1 | 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
#F5F5F3
oklch(97% 0.003 106.4)
-
Step 100
100
#EAEAE6
oklch(93.6% 0.005 106.5)
-
Step 200
200
#DADAD1
oklch(88.6% 0.012 106.6)
-
Step 300
300
#C1C2B3
oklch(80.9% 0.021 109.9)
-
Step 400
400
#A2A28B
oklch(70.6% 0.032 107.2)
-
Step 500
500
#8C8C6F
oklch(63.2% 0.042 107.5)
-
Step 600
600
#767657
oklch(55.7% 0.045 107.8)
-
Step 700
700 (this color)
#66664A
oklch(50.2% 0.042 107.8)
-
Step 800
800
#51513A
oklch(42.8% 0.036 107.8)
-
Step 900
900
#434332
oklch(37.8% 0.028 107.7)
-
Step 950
950
#27271D
oklch(26.9% 0.018 107.5)
#66664A 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) | #6B6448 | 0.009 |
| Deuteranopia (no green cones) | #6B654B | 0.009 |
| Tritanopia (no blue cones) | #6A625F | 0.039 |
| Achromatopsia (no color) | #646464 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66664A
#66664A
oklch(50.2% 0.042 107.8)
- #62607B
#62607B
oklch(50.1% 0.043 288.1)
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 #66664A, 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
- Dark Taupe #7F684E ΔE 0.043
- Dim Gray #696969 ΔE 0.046
- Dirt Brown #836539 ΔE 0.049
- Dark Olive Green #556B2F ΔE 0.052
- Grey Brown #7F7053 ΔE 0.053
- Cocoa #875F42 ΔE 0.056
- Mud #735C12 ΔE 0.056
Use #66664A 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.