#668A20
Closest named color: Mossy Green (#638B27). oklch(58.6% 0.137 127), rgb(102, 138, 32).
Aa
Black text reads best on this color (5.22:1).
About this color
#668A20 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.137 and its hue 127°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mossy Green (#638B27), ΔE 0.005 away. Black text reads best on it, at 5.22:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Mossy Green (#638B27) |
| Black text | 5.22:1 |
| White text | 4.02:1 |
Values
| HEX | #668A20 |
| RGB | rgb(102, 138, 32) |
| HSL | hsl(80, 62%, 33%) |
| OKLCH | oklch(58.6% 0.137 127) |
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 #668A20 | 4.02:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #668A20 | 5.22:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #668A20 text on white | 4.02:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #668A20 text on black | 5.22:1 | AA | Lc -34.3 | 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 600.
-
Step 50
50
#F4F7F1
oklch(97.2% 0.009 128.6)
-
Step 100
100
#E7ECE0
oklch(93.6% 0.017 125.3)
-
Step 200
200
#D3DEC6
oklch(88.6% 0.034 127.3)
-
Step 300
300
#B6C89E
oklch(80.8% 0.061 126.6)
-
Step 400
400
#90AC68
oklch(70.7% 0.098 127)
-
Step 500
500
#75973C
oklch(63.1% 0.125 126.9)
-
Step 600
600 (this color)
#668A20
oklch(58.6% 0.137 127)
-
Step 700
700
#4D6D00
oklch(49.1% 0.127 127.1)
-
Step 800
800
#3F5908
oklch(42.7% 0.106 127.2)
-
Step 900
900
#364913
oklch(37.7% 0.081 126.7)
-
Step 950
950
#202B0D
oklch(27.1% 0.052 126.4)
#668A20 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) | #918008 | 0.064 |
| Deuteranopia (no green cones) | #8C7E2A | 0.065 |
| Tritanopia (no blue cones) | #6A8376 | 0.110 |
| Achromatopsia (no color) | #7F7F7F | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668A20
#668A20
oklch(58.6% 0.137 127)
- #9163BB
#9163BB
oklch(58.5% 0.138 306.7)
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 #668A20, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mossy Green #638B27 ΔE 0.005
- Olive Drab #6B8E23 ΔE 0.014
- Sap Green #5C8B15 ΔE 0.015
- Moss Green #658B38 ΔE 0.018
- Swamp Green #748500 ΔE 0.021
- Dark Yellow Green #728F02 ΔE 0.025
- Fern Green #548D44 ΔE 0.031
- Khaki Green #728639 ΔE 0.033
Use #668A20 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.