#668D27
Closest named color: Mossy Green (#638B27). oklch(59.4% 0.136 128.3), rgb(102, 141, 39).
Aa
Black text reads best on this color (5.40:1).
About this color
#668D27 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.136 and its hue 128°. 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 5.40:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Mossy Green (#638B27) |
| Black text | 5.40:1 |
| White text | 3.88:1 |
Values
| HEX | #668D27 |
| RGB | rgb(102, 141, 39) |
| HSL | hsl(83, 57%, 35%) |
| OKLCH | oklch(59.4% 0.136 128.3) |
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 #668D27 | 3.88:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #668D27 | 5.40:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #668D27 text on white | 3.88:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #668D27 text on black | 5.40:1 | AA | Lc -35.5 | 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
#F4F7F0
oklch(97.2% 0.01 125.7)
-
Step 100
100
#E6EDDF
oklch(93.7% 0.02 128.7)
-
Step 200
200
#D2DEC5
oklch(88.5% 0.036 128.1)
-
Step 300
300
#B4C99C
oklch(80.8% 0.065 128.1)
-
Step 400
400
#8DAD64
oklch(70.6% 0.105 128.2)
-
Step 500
500 (this color)
#668D27
oklch(59.4% 0.136 128.3)
-
Step 600
600
#598200
oklch(55.5% 0.146 128.3)
-
Step 700
700
#4A6D00
oklch(48.9% 0.129 128.3)
-
Step 800
800
#3C5A00
oklch(42.8% 0.113 128.5)
-
Step 900
900
#334A0D
oklch(37.7% 0.089 128.4)
-
Step 950
950
#1E2B0A
oklch(26.8% 0.056 128)
#668D27 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) | #948316 | 0.067 |
| Deuteranopia (no green cones) | #8F8030 | 0.070 |
| Tritanopia (no blue cones) | #6A8779 | 0.107 |
| Achromatopsia (no color) | #818181 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668D27
#668D27
oklch(59.4% 0.136 128.3)
- #9565BC
#9565BC
oklch(59.3% 0.137 308.2)
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 #668D27, 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 0.007
- Moss Green #658B38 ΔE 0.017
- Sap Green #5C8B15 ΔE 0.019
- Dark Yellow Green #728F02 ΔE 0.021
- Swamp Green #748500 ΔE 0.026
- Fern Green #548D44 ΔE 0.030
- Khaki Green #728639 ΔE 0.034
Use #668D27 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.