#66868C
Closest named color: Steel Grey (#6F828A). oklch(59.8% 0.037 210.3), rgb(102, 134, 140).
Aa
Black text reads best on this color (5.35:1).
About this color
#66868C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.037 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Grey (#6F828A), ΔE 0.015 away. Black text reads best on it, at 5.35:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.35:1 |
| White text | 3.92:1 |
Values
| HEX | #66868C |
| RGB | rgb(102, 134, 140) |
| HSL | hsl(189, 16%, 47%) |
| OKLCH | oklch(59.8% 0.037 210.3) |
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 #66868C | 3.92:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #66868C | 5.35:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #66868C text on white | 3.92:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #66868C text on black | 5.35:1 | AA | Lc -35.0 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDD
oklch(88.5% 0.01 212.5)
-
Step 300
300
#B4C4C7
oklch(80.9% 0.018 210.2)
-
Step 400
400
#8CA6AB
oklch(70.7% 0.03 210.6)
-
Step 500
500 (this color)
#66868C
oklch(59.8% 0.037 210.3)
-
Step 600
600
#577A81
oklch(55.6% 0.041 211.3)
-
Step 700
700
#47676D
oklch(49.1% 0.038 210.5)
-
Step 800
800
#3B5459
oklch(42.8% 0.031 211.3)
-
Step 900
900
#334549
oklch(37.7% 0.024 212.8)
-
Step 950
950
#1E292B
oklch(27.1% 0.016 209.9)
#66868C 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) | #80838C | 0.035 |
| Deuteranopia (no green cones) | #7A7E8C | 0.034 |
| Tritanopia (no blue cones) | #5A8988 | 0.019 |
| Achromatopsia (no color) | #808080 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66868C
#66868C
oklch(59.8% 0.037 210.3)
- #957872
#957872
oklch(59.9% 0.038 31.7)
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 #66868C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.015
- Steel #738595 ΔE 0.024
- Slate Gray #708090 ΔE 0.024
- Battleship Grey #6B7C85 ΔE 0.028
- Grey Blue #647D8E ΔE 0.028
- Light Slate Gray #778899 ΔE 0.031
- Medium Grey #7D7F7C ΔE 0.037
- Gray #808080 ΔE 0.037
Use #66868C 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.