#668B59
Closest named color: Dark Sage (#598556). oklch(59.6% 0.084 137.8), rgb(102, 139, 89).
Aa
Black text reads best on this color (5.40:1).
About this color
#668B59 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.084 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.025 away. Black text reads best on it, at 5.40:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 5.40:1 |
| White text | 3.88:1 |
Values
| HEX | #668B59 |
| RGB | rgb(102, 139, 89) |
| HSL | hsl(104, 22%, 45%) |
| OKLCH | oklch(59.6% 0.084 137.8) |
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 #668B59 | 3.88:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #668B59 | 5.40:1 | AA | Lc 37.8 | Non-text elements, placeholder text |
| #668B59 text on white | 3.88:1 | AA large text | Lc 66.3 | Content text, not long reading |
| #668B59 text on black | 5.40:1 | AA | Lc -35.4 | 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
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E6ECE4
oklch(93.6% 0.012 137.8)
-
Step 200
200
#D2DDCE
oklch(88.5% 0.023 137.3)
-
Step 300
300
#B4C7AE
oklch(80.8% 0.04 138.2)
-
Step 400
400
#8DAB83
oklch(70.8% 0.066 137.9)
-
Step 500
500 (this color)
#668B59
oklch(59.6% 0.084 137.8)
-
Step 600
600
#58804A
oklch(55.6% 0.092 137.9)
-
Step 700
700
#486C3B
oklch(49.1% 0.085 137.8)
-
Step 800
800
#3B5831
oklch(42.7% 0.071 138)
-
Step 900
900
#33492B
oklch(37.8% 0.056 137.6)
-
Step 950
950
#1E2B1A
oklch(27.2% 0.035 138.5)
#668B59 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) | #8E8356 | 0.058 |
| Deuteranopia (no green cones) | #89805C | 0.057 |
| Tritanopia (no blue cones) | #65887E | 0.057 |
| Achromatopsia (no color) | #818181 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668B59
#668B59
oklch(59.6% 0.084 137.8)
- #946FA0
#946FA0
oklch(59.6% 0.084 317.7)
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 #668B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.025
- Slate Green #658D6D ΔE 0.026
- Light Forest Green #4F9153 ΔE 0.033
- Khaki Green #728639 ΔE 0.035
- Swamp #698339 ΔE 0.037
- Camo #7F8F4E ΔE 0.038
- Fern Green #548D44 ΔE 0.038
- Moss Green #658B38 ΔE 0.039
Use #668B59 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.