#668556
Closest named color: Dark Sage (#598556). oklch(58% 0.078 135.4), rgb(102, 133, 86).
Aa
Black text reads best on this color (5.05:1).
About this color
#668556 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.078 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.016 away. Black text reads best on it, at 5.05:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #668556 |
| RGB | rgb(102, 133, 86) |
| HSL | hsl(100, 21%, 43%) |
| OKLCH | oklch(58% 0.078 135.4) |
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 #668556 | 4.15:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #668556 | 5.05:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #668556 text on white | 4.15:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #668556 text on black | 5.05:1 | AA | Lc -33.1 | 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
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E7EBE5
oklch(93.5% 0.009 134.9)
-
Step 200
200
#D4DCD0
oklch(88.5% 0.018 134.9)
-
Step 300
300
#B7C6B0
oklch(80.9% 0.034 135.6)
-
Step 400
400
#92A986
oklch(70.7% 0.056 134.9)
-
Step 500
500
#769468
oklch(63.2% 0.072 135.9)
-
Step 600
600 (this color)
#668556
oklch(58% 0.078 135.4)
-
Step 700
700
#4E6A40
oklch(49.1% 0.072 135.7)
-
Step 800
800
#405635
oklch(42.6% 0.059 135.6)
-
Step 900
900
#37472E
oklch(37.6% 0.046 134.7)
-
Step 950
950
#202A1B
oklch(27.1% 0.03 135.4)
#668556 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) | #887E53 | 0.050 |
| Deuteranopia (no green cones) | #847B58 | 0.051 |
| Tritanopia (no blue cones) | #668279 | 0.055 |
| Achromatopsia (no color) | #7C7C7C | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668556
#668556
oklch(58% 0.078 135.4)
- #8C6C9A
#8C6C9A
oklch(58% 0.078 315.4)
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 #668556, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.016
- Swamp #698339 ΔE 0.033
- Slate Green #658D6D ΔE 0.033
- Military Green #667C3E ΔE 0.033
- Khaki Green #728639 ΔE 0.036
- Drab #828344 ΔE 0.040
- Light Forest Green #4F9153 ΔE 0.043
- Fern Green #548D44 ΔE 0.044
Use #668556 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.