#668661
Closest named color: Slate Green (#658D6D). oklch(58.5% 0.066 141.2), rgb(102, 134, 97).
Aa
Black text reads best on this color (5.14:1).
About this color
#668661 is a medium-dark, muted green. In OKLCH its lightness is 59%, its chroma 0.066 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.022 away. Black text reads best on it, at 5.14:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.066) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.14:1 |
| White text | 4.07:1 |
Values
| HEX | #668661 |
| RGB | rgb(102, 134, 97) |
| HSL | hsl(112, 16%, 45%) |
| OKLCH | oklch(58.5% 0.066 141.2) |
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 #668661 | 4.07:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #668661 | 5.14:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #668661 text on white | 4.07:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #668661 text on black | 5.14:1 | AA | Lc -33.7 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE6
oklch(93.6% 0.008 139.4)
-
Step 200
200
#D3DCD2
oklch(88.5% 0.017 142.6)
-
Step 300
300
#B6C6B4
oklch(80.9% 0.03 142.1)
-
Step 400
400
#91A88D
oklch(70.6% 0.046 141)
-
Step 500
500
#759371
oklch(63.1% 0.06 141.8)
-
Step 600
600 (this color)
#668661
oklch(58.5% 0.066 141.2)
-
Step 700
700
#4D6A49
oklch(49.2% 0.062 141.6)
-
Step 800
800
#3F563C
oklch(42.6% 0.051 141.7)
-
Step 900
900
#364733
oklch(37.7% 0.04 140.8)
-
Step 950
950
#202A1E
oklch(27.1% 0.026 140.4)
#668661 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) | #88805F | 0.049 |
| Deuteranopia (no green cones) | #837C63 | 0.049 |
| Tritanopia (no blue cones) | #64847C | 0.042 |
| Achromatopsia (no color) | #7E7E7E | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668661
#668661
oklch(58.5% 0.066 141.2)
- #8E6F94
#8E6F94
oklch(58.5% 0.066 320.9)
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 #668661, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.022
- Dark Sage #598556 ΔE 0.024
- Green Grey #77926F ΔE 0.045
- Military Green #667C3E ΔE 0.046
- Drab #828344 ΔE 0.046
- Swamp #698339 ΔE 0.047
- Khaki Green #728639 ΔE 0.049
- Light Forest Green #4F9153 ΔE 0.050
Use #668661 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.