#668B38
Closest named color: Moss Green (#658B38). oklch(59% 0.12 129.6), rgb(102, 139, 56).
Aa
Black text reads best on this color (5.31:1).
About this color
#668B38 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.120 and its hue 130°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Moss Green (#658B38), ΔE 0.001 away. Black text reads best on it, at 5.31:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Moss Green (#658B38) |
| Black text | 5.31:1 |
| White text | 3.95:1 |
Values
| HEX | #668B38 |
| RGB | rgb(102, 139, 56) |
| HSL | hsl(87, 43%, 38%) |
| OKLCH | oklch(59% 0.12 129.6) |
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 #668B38 | 3.95:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #668B38 | 5.31:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #668B38 text on white | 3.95:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #668B38 text on black | 5.31:1 | AA | Lc -34.9 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E6ECE1
oklch(93.5% 0.016 130.4)
-
Step 200
200
#D3DDC9
oklch(88.4% 0.029 128.8)
-
Step 300
300
#B5C8A4
oklch(80.9% 0.053 130.3)
-
Step 400
400
#8FAC72
oklch(70.8% 0.087 130)
-
Step 500
500
#74964C
oklch(63% 0.109 129.4)
-
Step 600
600 (this color)
#668B38
oklch(59% 0.12 129.6)
-
Step 700
700
#4C6D1F
oklch(49.2% 0.112 129.6)
-
Step 800
800
#3E581C
oklch(42.5% 0.092 129.5)
-
Step 900
900
#35491D
oklch(37.7% 0.072 129.6)
-
Step 950
950
#1F2B12
oklch(27.1% 0.046 130)
#668B38 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) | #91822F | 0.062 |
| Deuteranopia (no green cones) | #8C7F3E | 0.064 |
| Tritanopia (no blue cones) | #698579 | 0.093 |
| Achromatopsia (no color) | #808080 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668B38
#668B38
oklch(59% 0.12 129.6)
- #9368B3
#9368B3
oklch(59.1% 0.12 309.5)
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 #668B38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Moss Green #658B38 ΔE 0.001
- Mossy Green #638B27 ΔE 0.016
- Fern Green #548D44 ΔE 0.021
- Khaki Green #728639 ΔE 0.021
- Olive Drab #6B8E23 ΔE 0.021
- Swamp #698339 ΔE 0.024
- Sap Green #5C8B15 ΔE 0.031
- Swamp Green #748500 ΔE 0.031
Use #668B38 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.