#668C3E
Closest named color: Moss Green (#658B38). oklch(59.4% 0.115 130.8), rgb(102, 140, 62).
Aa
Black text reads best on this color (5.38:1).
About this color
#668C3E is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.115 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 0.006 away. Black text reads best on it, at 5.38:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Moss Green (#658B38) |
| Black text | 5.38:1 |
| White text | 3.89:1 |
Values
| HEX | #668C3E |
| RGB | rgb(102, 140, 62) |
| HSL | hsl(89, 39%, 40%) |
| OKLCH | oklch(59.4% 0.115 130.8) |
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 #668C3E | 3.89:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #668C3E | 5.38:1 | AA | Lc 37.8 | Non-text elements, placeholder text |
| #668C3E text on white | 3.89:1 | AA large text | Lc 66.3 | Content text, not long reading |
| #668C3E text on black | 5.38:1 | AA | Lc -35.3 | 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
#B4C9A3
oklch(81% 0.057 131.2)
-
Step 400
400
#8DAC70
oklch(70.6% 0.09 130.6)
-
Step 500
500 (this color)
#668C3E
oklch(59.4% 0.115 130.8)
-
Step 600
600
#59822A
oklch(55.7% 0.126 130.9)
-
Step 700
700
#496D1C
oklch(49% 0.116 130.6)
-
Step 800
800
#3C591A
oklch(42.7% 0.096 130.7)
-
Step 900
900
#33491C
oklch(37.6% 0.074 130.9)
-
Step 950
950
#1E2B11
oklch(27% 0.048 130.8)
#668C3E 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) | #928336 | 0.063 |
| Deuteranopia (no green cones) | #8C8043 | 0.064 |
| Tritanopia (no blue cones) | #68877B | 0.088 |
| Achromatopsia (no color) | #818181 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668C3E
#668C3E
oklch(59.4% 0.115 130.8)
- #9469B1
#9469B1
oklch(59.3% 0.116 310.7)
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 #668C3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Moss Green #658B38 ΔE 0.006
- Fern Green #548D44 ΔE 0.020
- Khaki Green #728639 ΔE 0.021
- Mossy Green #638B27 ΔE 0.021
- Olive Drab #6B8E23 ΔE 0.025
- Swamp #698339 ΔE 0.025
- Light Forest Green #4F9153 ΔE 0.029
- Sap Green #5C8B15 ΔE 0.036
Use #668C3E 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.