#668A73
Closest named color: Slate Green (#658D6D). oklch(59.9% 0.053 156.4), rgb(102, 138, 115).
Aa
Black text reads best on this color (5.44:1).
About this color
#668A73 is a medium-dark, muted green. In OKLCH its lightness is 60%, its chroma 0.053 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.015 away. Black text reads best on it, at 5.44:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #668A73 |
| RGB | rgb(102, 138, 115) |
| HSL | hsl(142, 15%, 47%) |
| OKLCH | oklch(59.9% 0.053 156.4) |
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 #668A73 | 3.85:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #668A73 | 5.44:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #668A73 text on white | 3.85:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #668A73 text on black | 5.44:1 | AA | Lc -35.7 | 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 500.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD5
oklch(88.5% 0.014 155.6)
-
Step 300
300
#B4C6BA
oklch(80.9% 0.026 156.6)
-
Step 400
400
#8CA996
oklch(70.7% 0.042 156.5)
-
Step 500
500 (this color)
#668A73
oklch(59.9% 0.053 156.4)
-
Step 600
600
#577E65
oklch(55.6% 0.059 155.9)
-
Step 700
700
#476A54
oklch(49.1% 0.054 156.2)
-
Step 800
800
#3A5745
oklch(42.8% 0.046 156.6)
-
Step 900
900
#32473A
oklch(37.6% 0.034 157.1)
-
Step 950
950
#1E2A22
oklch(27.1% 0.022 155.5)
#668A73 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) | #8A8472 | 0.050 |
| Deuteranopia (no green cones) | #838074 | 0.047 |
| Tritanopia (no blue cones) | #608983 | 0.025 |
| Achromatopsia (no color) | #828282 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668A73
#668A73
oklch(59.9% 0.053 156.4)
- #95748C
#95748C
oklch(59.9% 0.053 336.3)
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 #668A73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.015
- Dusty Teal #4C9085 ΔE 0.034
- Green Grey #77926F ΔE 0.035
- Dark Sage #598556 ΔE 0.045
- Medium Grey #7D7F7C ΔE 0.049
- Grey Teal #5E9B8A ΔE 0.050
- Steel Grey #6F828A ΔE 0.050
- Brown Grey #8D8468 ΔE 0.053
Use #668A73 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.