#668C72
Closest named color: Slate Green (#658D6D). oklch(60.4% 0.058 154.5), rgb(102, 140, 114).
Aa
Black text reads best on this color (5.55:1).
About this color
#668C72 is a medium-dark, muted green. In OKLCH its lightness is 60%, its chroma 0.058 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.009 away. Black text reads best on it, at 5.55:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.55:1 |
| White text | 3.77:1 |
Values
| HEX | #668C72 |
| RGB | rgb(102, 140, 114) |
| HSL | hsl(139, 16%, 47%) |
| OKLCH | oklch(60.4% 0.058 154.5) |
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 #668C72 | 3.77:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #668C72 | 5.55:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #668C72 text on white | 3.77:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #668C72 text on black | 5.55:1 | AA | Lc -36.4 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6EBE7
oklch(93.5% 0.008 151.9)
-
Step 200
200
#D2DCD4
oklch(88.5% 0.015 151.7)
-
Step 300
300
#B3C6B9
oklch(80.8% 0.027 155.8)
-
Step 400
400
#8BA994
oklch(70.6% 0.045 154.6)
-
Step 500
500 (this color)
#668C72
oklch(60.4% 0.058 154.5)
-
Step 600
600
#557E63
oklch(55.5% 0.062 155)
-
Step 700
700
#456B52
oklch(49.2% 0.059 154.8)
-
Step 800
800
#395743
oklch(42.7% 0.049 154.6)
-
Step 900
900
#324839
oklch(37.8% 0.038 154.5)
-
Step 950
950
#1D2A21
oklch(27% 0.024 154.3)
#668C72 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) | #8C8671 | 0.053 |
| Deuteranopia (no green cones) | #858273 | 0.049 |
| Tritanopia (no blue cones) | #608B85 | 0.030 |
| Achromatopsia (no color) | #838383 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668C72
#668C72
oklch(60.4% 0.058 154.5)
- #987590
#987590
oklch(60.5% 0.058 334.5)
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 #668C72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.009
- Green Grey #77926F ΔE 0.030
- Dusty Teal #4C9085 ΔE 0.034
- Dark Sage #598556 ΔE 0.045
- Grey Teal #5E9B8A ΔE 0.046
- Ocean Green #3D9973 ΔE 0.051
- Brown Grey #8D8468 ΔE 0.054
- Medium Grey #7D7F7C ΔE 0.054
Use #668C72 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.