#668E3C
Closest named color: Moss Green (#658B38). oklch(59.9% 0.12 130.9), rgb(102, 142, 60).
Aa
Black text reads best on this color (5.49:1).
About this color
#668E3C is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.120 and its hue 131°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Moss Green (#658B38), ΔE 0.009 away. Black text reads best on it, at 5.49:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Moss Green (#658B38) |
| Black text | 5.49:1 |
| White text | 3.81:1 |
Values
| HEX | #668E3C |
| RGB | rgb(102, 142, 60) |
| HSL | hsl(89, 41%, 40%) |
| OKLCH | oklch(59.9% 0.12 130.9) |
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 #668E3C | 3.81:1 | AA large text | Lc -71.1 | Content text, not long reading |
| Black text on #668E3C | 5.49:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #668E3C text on white | 3.81:1 | AA large text | Lc 65.6 | Content text, not long reading |
| #668E3C text on black | 5.49:1 | 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
#F4F7F1
oklch(97.2% 0.009 128.6)
-
Step 100
100
#E6ECE1
oklch(93.5% 0.016 130.4)
-
Step 200
200
#D2DEC8
oklch(88.5% 0.032 130.6)
-
Step 300
300
#B3C9A1
oklch(80.9% 0.06 131.2)
-
Step 400
400
#8CAD6E
oklch(70.7% 0.094 131)
-
Step 500
500 (this color)
#668E3C
oklch(59.9% 0.12 130.9)
-
Step 600
600
#578225
oklch(55.6% 0.131 131.1)
-
Step 700
700
#476E17
oklch(49.1% 0.122 131.2)
-
Step 800
800
#3B5A16
oklch(42.8% 0.101 131)
-
Step 900
900
#334A1A
oklch(37.8% 0.078 130.8)
-
Step 950
950
#1E2B10
oklch(26.9% 0.049 130.3)
#668E3C 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) | #948434 | 0.067 |
| Deuteranopia (no green cones) | #8E8142 | 0.067 |
| Tritanopia (no blue cones) | #68887C | 0.092 |
| Achromatopsia (no color) | #828282 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668E3C
#668E3C
oklch(59.9% 0.12 130.9)
- #976AB4
#976AB4
oklch(59.9% 0.119 311.2)
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 #668E3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Moss Green #658B38 ΔE 0.009
- Mossy Green #638B27 ΔE 0.019
- Olive Drab #6B8E23 ΔE 0.020
- Fern Green #548D44 ΔE 0.021
- Khaki Green #728639 ΔE 0.026
- Light Forest Green #4F9153 ΔE 0.030
- Swamp #698339 ΔE 0.032
- Sap Green #5C8B15 ΔE 0.033
Use #668E3C 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.