#668C68
Closest named color: Slate Green (#658D6D). oklch(60.2% 0.069 146), rgb(102, 140, 104).
Aa
Black text reads best on this color (5.51:1).
About this color
#668C68 is a medium-dark, muted green. In OKLCH its lightness is 60%, its chroma 0.069 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.007 away. Black text reads best on it, at 5.51:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.51:1 |
| White text | 3.80:1 |
Values
| HEX | #668C68 |
| RGB | rgb(102, 140, 104) |
| HSL | hsl(123, 16%, 47%) |
| OKLCH | oklch(60.2% 0.069 146) |
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 #668C68 | 3.80:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #668C68 | 5.51:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #668C68 text on white | 3.80:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #668C68 text on black | 5.51:1 | AA | Lc -36.1 | 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 500.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D2DDD2
oklch(88.6% 0.019 145.4)
-
Step 300
300
#B3C7B4
oklch(80.9% 0.034 146.6)
-
Step 400
400
#8CAA8D
oklch(70.7% 0.053 145.9)
-
Step 500
500 (this color)
#668C68
oklch(60.2% 0.069 146)
-
Step 600
600
#567F59
oklch(55.5% 0.074 146.3)
-
Step 700
700
#466B49
oklch(49% 0.068 146.4)
-
Step 800
800
#3A583C
oklch(42.8% 0.058 146.1)
-
Step 900
900
#324833
oklch(37.7% 0.045 145.7)
-
Step 950
950
#1D2A1E
oklch(26.9% 0.028 146.7)
#668C68 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) | #8D8566 | 0.055 |
| Deuteranopia (no green cones) | #87816A | 0.054 |
| Tritanopia (no blue cones) | #628A82 | 0.041 |
| Achromatopsia (no color) | #838383 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668C68
#668C68
oklch(60.2% 0.069 146)
- #967297
#967297
oklch(60% 0.069 325.5)
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 #668C68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.007
- Green Grey #77926F ΔE 0.030
- Dark Sage #598556 ΔE 0.035
- Dusty Teal #4C9085 ΔE 0.044
- Light Forest Green #4F9153 ΔE 0.046
- Camo #7F8F4E ΔE 0.046
- Ocean Green #3D9973 ΔE 0.047
- Drab Green #749551 ΔE 0.049
Use #668C68 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.