#4D666E
Closest named color: Slate (#516572). oklch(49.3% 0.032 219.4), rgb(77, 102, 110).
Aa
White text reads best on this color (6.10:1).
About this color
#4D666E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.032 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.010 away. White text reads best on it, at 6.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.44:1 |
| White text | 6.10:1 |
Values
| HEX | #4D666E |
| RGB | rgb(77, 102, 110) |
| HSL | hsl(195, 18%, 37%) |
| OKLCH | oklch(49.3% 0.032 219.4) |
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 #4D666E | 6.10:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #4D666E | 3.44:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #4D666E text on white | 6.10:1 | AA | Lc 80.5 | Fine for body text |
| #4D666E text on black | 3.44:1 | AA large text | Lc -21.4 | Dividers and decoration only |
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 700.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEC
oklch(93.7% 0.005 214.3)
-
Step 200
200
#D3DBDD
oklch(88.6% 0.009 214.3)
-
Step 300
300
#B6C3C7
oklch(80.8% 0.015 218.1)
-
Step 400
400
#90A5AB
oklch(70.8% 0.025 216.8)
-
Step 500
500
#758E97
oklch(63% 0.032 221.7)
-
Step 600
600
#5D7881
oklch(55.5% 0.034 220.2)
-
Step 700
700 (this color)
#4D666E
oklch(49.3% 0.032 219.4)
-
Step 800
800
#3F5359
oklch(42.8% 0.027 218.1)
-
Step 900
900
#354449
oklch(37.6% 0.021 220.1)
-
Step 950
950
#1F282B
oklch(26.9% 0.014 220.1)
#4D666E 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) | #61646E | 0.028 |
| Deuteranopia (no green cones) | #5C606E | 0.026 |
| Tritanopia (no blue cones) | #426968 | 0.021 |
| Achromatopsia (no color) | #626262 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D666E
#4D666E
oklch(49.3% 0.032 219.4)
- #725B54
#725B54
oklch(49.2% 0.032 37.6)
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 #4D666E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.010
- Dim Gray #696969 ΔE 0.042
- YInMn Blue #415A77 ΔE 0.048
- Dusty Grape #545775 ΔE 0.051
- Dark Aqua #05696B ΔE 0.055
- Denim #3B638C ΔE 0.055
- Metallic Blue #4F738E ΔE 0.056
- Deep Turquoise #017374 ΔE 0.058
Use #4D666E 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.