#668E6E
Closest named color: Slate Green (#658D6D). oklch(60.8% 0.066 150.2), rgb(102, 142, 110).
Aa
Black text reads best on this color (5.65:1).
About this color
#668E6E is a medium-dark, muted green. In OKLCH its lightness is 61%, its chroma 0.066 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 0.003 away. Black text reads best on it, at 5.65:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.066) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.65:1 |
| White text | 3.71:1 |
Values
| HEX | #668E6E |
| RGB | rgb(102, 142, 110) |
| HSL | hsl(132, 16%, 48%) |
| OKLCH | oklch(60.8% 0.066 150.2) |
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 #668E6E | 3.71:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #668E6E | 5.65:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #668E6E text on white | 3.71:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #668E6E text on black | 5.65:1 | AA | Lc -37.0 | 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
#E6ECE7
oklch(93.7% 0.009 150.7)
-
Step 200
200
#D1DDD3
oklch(88.6% 0.019 150.5)
-
Step 300
300
#B3C7B6
oklch(81% 0.032 149.7)
-
Step 400
400
#8AAA90
oklch(70.7% 0.051 150.4)
-
Step 500
500 (this color)
#668E6E
oklch(60.8% 0.066 150.2)
-
Step 600
600
#547F5D
oklch(55.5% 0.071 150.2)
-
Step 700
700
#446B4D
oklch(49% 0.065 150.7)
-
Step 800
800
#38583F
oklch(42.8% 0.056 150.4)
-
Step 900
900
#314836
oklch(37.7% 0.042 150.7)
-
Step 950
950
#1D2A1F
oklch(26.9% 0.027 149)
#668E6E 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) | #8F876C | 0.057 |
| Deuteranopia (no green cones) | #888370 | 0.055 |
| Tritanopia (no blue cones) | #608D85 | 0.035 |
| Achromatopsia (no color) | #858585 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668E6E
#668E6E
oklch(60.8% 0.066 150.2)
- #9A7495
#9A7495
oklch(60.7% 0.066 330.9)
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 #668E6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.003
- Green Grey #77926F ΔE 0.026
- Dusty Teal #4C9085 ΔE 0.038
- Dark Sage #598556 ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.045
- Ocean Green #3D9973 ΔE 0.045
- Camo #7F8F4E ΔE 0.049
- Drab Green #749551 ΔE 0.051
Use #668E6E 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.