#668677
Closest named color: Slate Green (#658D6D). oklch(59.1% 0.043 164.6), rgb(102, 134, 119).
Aa
Black text reads best on this color (5.24:1).
About this color
#668677 is a medium-dark, muted green. In OKLCH its lightness is 59%, its chroma 0.043 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.030 away. Black text reads best on it, at 5.24:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.043) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #668677 |
| RGB | rgb(102, 134, 119) |
| HSL | hsl(152, 14%, 46%) |
| OKLCH | oklch(59.1% 0.043 164.6) |
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 #668677 | 4.00:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #668677 | 5.24:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #668677 text on white | 4.00:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #668677 text on black | 5.24:1 | AA | Lc -34.3 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE9
oklch(93.6% 0.005 165)
-
Step 200
200
#D3DBD7
oklch(88.4% 0.01 164.8)
-
Step 300
300
#B6C5BD
oklch(81% 0.02 162.8)
-
Step 400
400
#90A79C
oklch(70.7% 0.03 165.1)
-
Step 500
500
#749183
oklch(63% 0.039 164.3)
-
Step 600
600 (this color)
#668677
oklch(59.1% 0.043 164.6)
-
Step 700
700
#4B685B
oklch(49% 0.04 165.4)
-
Step 800
800
#3E554A
oklch(42.7% 0.034 164)
-
Step 900
900
#35463E
oklch(37.7% 0.026 164.7)
-
Step 950
950
#1F2924
oklch(27% 0.017 163.4)
#668677 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) | #858176 | 0.044 |
| Deuteranopia (no green cones) | #7F7D78 | 0.042 |
| Tritanopia (no blue cones) | #5F8682 | 0.018 |
| Achromatopsia (no color) | #7F7F7F | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668677
#668677
oklch(59.1% 0.043 164.6)
- #917484
#917484
oklch(59.2% 0.043 344.2)
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 #668677, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.030
- Dusty Teal #4C9085 ΔE 0.036
- Steel Grey #6F828A ΔE 0.038
- Medium Grey #7D7F7C ΔE 0.039
- Battleship Grey #6B7C85 ΔE 0.043
- Gray #808080 ΔE 0.044
- Green Grey #77926F ΔE 0.048
- Slate Gray #708090 ΔE 0.050
Use #668677 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.