#668178
Closest named color: Battleship Grey (#6B7C85). oklch(57.9% 0.034 172.7), rgb(102, 129, 120).
Aa
Black text reads best on this color (4.97:1).
About this color
#668178 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.034 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.030 away. Black text reads best on it, at 4.97:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.97:1 |
| White text | 4.22:1 |
Values
| HEX | #668178 |
| RGB | rgb(102, 129, 120) |
| HSL | hsl(160, 12%, 45%) |
| OKLCH | oklch(57.9% 0.034 172.7) |
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 #668178 | 4.22:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #668178 | 4.97:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #668178 text on white | 4.22:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #668178 text on black | 4.97:1 | AA | Lc -32.5 | 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
#D4DBD8
oklch(88.5% 0.009 168.7)
-
Step 300
300
#B7C4BF
oklch(80.9% 0.016 170.9)
-
Step 400
400
#92A69F
oklch(70.8% 0.025 172.5)
-
Step 500
500
#779087
oklch(63.1% 0.031 171.4)
-
Step 600
600 (this color)
#668178
oklch(57.9% 0.034 172.7)
-
Step 700
700
#4F675F
oklch(49.2% 0.031 172.6)
-
Step 800
800
#41544D
oklch(42.8% 0.026 170.6)
-
Step 900
900
#374540
oklch(37.6% 0.02 171.5)
-
Step 950
950
#202926
oklch(27.1% 0.014 173)
#668178 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) | #7F7D78 | 0.036 |
| Deuteranopia (no green cones) | #7A7A79 | 0.033 |
| Tritanopia (no blue cones) | #60827E | 0.010 |
| Achromatopsia (no color) | #7B7B7B | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #668178
#668178
oklch(57.9% 0.034 172.7)
- #8B727C
#8B727C
oklch(57.9% 0.034 352.2)
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 #668178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.030
- Steel Grey #6F828A ΔE 0.031
- Medium Grey #7D7F7C ΔE 0.033
- Battleship Gray #6C757D ΔE 0.039
- Gray #808080 ΔE 0.040
- Grey Blue #647D8E ΔE 0.040
- Slate Gray #708090 ΔE 0.042
- Slate Green #658D6D ΔE 0.044
Use #668178 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.