#66856C
Closest named color: Slate Green (#658D6D). oklch(58.5% 0.052 150.4), rgb(102, 133, 108).
Aa
Black text reads best on this color (5.13:1).
About this color
#66856C is a medium-dark, muted green. In OKLCH its lightness is 59%, its chroma 0.052 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.024 away. Black text reads best on it, at 5.13:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.13:1 |
| White text | 4.08:1 |
Values
| HEX | #66856C |
| RGB | rgb(102, 133, 108) |
| HSL | hsl(132, 13%, 46%) |
| OKLCH | oklch(58.5% 0.052 150.4) |
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 #66856C | 4.08:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #66856C | 5.13:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #66856C text on white | 4.08:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #66856C text on black | 5.13:1 | AA | Lc -33.6 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D3DCD5
oklch(88.6% 0.014 152.6)
-
Step 300
300
#B6C5B9
oklch(80.8% 0.023 151.6)
-
Step 400
400
#91A895
oklch(70.8% 0.037 150.3)
-
Step 500
500
#75927B
oklch(63.1% 0.047 151)
-
Step 600
600 (this color)
#66856C
oklch(58.5% 0.052 150.4)
-
Step 700
700
#4D6952
oklch(49.2% 0.049 149.7)
-
Step 800
800
#3F5544
oklch(42.6% 0.039 151.4)
-
Step 900
900
#364639
oklch(37.6% 0.03 150.3)
-
Step 950
950
#202921
oklch(26.9% 0.019 148.1)
#66856C 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) | #85806B | 0.044 |
| Deuteranopia (no green cones) | #807C6D | 0.043 |
| Tritanopia (no blue cones) | #62847E | 0.028 |
| Achromatopsia (no color) | #7D7D7D | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66856C
#66856C
oklch(58.5% 0.052 150.4)
- #8E718B
#8E718B
oklch(58.5% 0.052 329.7)
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 #66856C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.024
- Dark Sage #598556 ΔE 0.038
- Dusty Teal #4C9085 ΔE 0.044
- Green Grey #77926F ΔE 0.046
- Medium Grey #7D7F7C ΔE 0.048
- Steel Grey #6F828A ΔE 0.052
- Gray #808080 ΔE 0.054
- Brown Grey #8D8468 ΔE 0.054
Use #66856C 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.