#668B1D
Closest named color: Mossy Green (#638B27). oklch(58.8% 0.14 127.1), rgb(102, 139, 29).
Aa
Black text reads best on this color (5.27:1).
About this color
#668B1D is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.140 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 0.007 away. Black text reads best on it, at 5.27:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.140) |
| Temperature | in between |
| Nearest name | Mossy Green (#638B27) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #668B1D |
| RGB | rgb(102, 139, 29) |
| HSL | hsl(80, 65%, 33%) |
| OKLCH | oklch(58.8% 0.14 127.1) |
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 #668B1D | 3.98:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #668B1D | 5.27:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #668B1D text on white | 3.98:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #668B1D text on black | 5.27:1 | AA | Lc -34.7 | 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
#E6ECDF
oklch(93.5% 0.018 127.1)
-
Step 200
200
#D3DEC5
oklch(88.5% 0.036 126.6)
-
Step 300
300
#B6C99D
oklch(81% 0.063 126.8)
-
Step 400
400
#90AC66
oklch(70.6% 0.1 126.6)
-
Step 500
500
#749739
oklch(63% 0.129 127)
-
Step 600
600 (this color)
#668B1D
oklch(58.8% 0.14 127.1)
-
Step 700
700
#4D6D00
oklch(49.1% 0.127 127.1)
-
Step 800
800
#3F5905
oklch(42.7% 0.107 127)
-
Step 900
900
#354911
oklch(37.6% 0.084 127.1)
-
Step 950
950
#1F2B0C
oklch(27% 0.053 127.4)
#668B1D 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) | #928100 | 0.065 |
| Deuteranopia (no green cones) | #8D7F28 | 0.066 |
| Tritanopia (no blue cones) | #6A8477 | 0.113 |
| Achromatopsia (no color) | #7F7F7F | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668B1D
#668B1D
oklch(58.8% 0.14 127.1)
- #9363BD
#9363BD
oklch(58.8% 0.141 307.2)
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 #668B1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mossy Green #638B27 ΔE 0.007
- Olive Drab #6B8E23 ΔE 0.012
- Sap Green #5C8B15 ΔE 0.014
- Moss Green #658B38 ΔE 0.021
- Dark Yellow Green #728F02 ΔE 0.022
- Swamp Green #748500 ΔE 0.022
- Fern Green #548D44 ΔE 0.033
- Khaki Green #728639 ΔE 0.036
Use #668B1D 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.