#4E5B66
Closest named color: Slate (#516572). oklch(46.4% 0.024 243.8), rgb(78, 91, 102).
Aa
White text reads best on this color (6.97:1).
About this color
#4E5B66 is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.032 away. White text reads best on it, at 6.97:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.01:1 |
| White text | 6.97:1 |
Values
| HEX | #4E5B66 |
| RGB | rgb(78, 91, 102) |
| HSL | hsl(208, 13%, 35%) |
| OKLCH | oklch(46.4% 0.024 243.8) |
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 #4E5B66 | 6.97:1 | AA | Lc -89.1 | Fine for body text |
| Black text on #4E5B66 | 3.01:1 | AA large text | Lc 19.9 | Dividers and decoration only |
| #4E5B66 text on white | 6.97:1 | AA | Lc 84.1 | Fine for body text |
| #4E5B66 text on black | 3.01:1 | AA large text | Lc -17.8 | 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
#F4F5F6
oklch(97% 0.002 247.8)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D6DADD
oklch(88.6% 0.006 239.8)
-
Step 300
300
#BAC2C8
oklch(81% 0.012 239.9)
-
Step 400
400
#97A2AC
oklch(70.7% 0.019 245.5)
-
Step 500
500
#7E8B97
oklch(63% 0.024 246)
-
Step 600
600
#677582
oklch(55.5% 0.026 246.3)
-
Step 700
700 (this color)
#4E5B66
oklch(46.4% 0.024 243.8)
-
Step 800
800
#465059
oklch(42.6% 0.02 245.4)
-
Step 900
900
#3B4349
oklch(37.8% 0.015 240.3)
-
Step 950
950
#22272B
oklch(26.9% 0.01 242.1)
#4E5B66 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) | #575B67 | 0.014 |
| Deuteranopia (no green cones) | #545866 | 0.012 |
| Tritanopia (no blue cones) | #475E5E | 0.021 |
| Achromatopsia (no color) | #595959 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E5B66
#4E5B66
oklch(46.4% 0.024 243.8)
- #63574B
#63574B
oklch(46.5% 0.025 67.2)
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 #4E5B66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.032
- Dusty Grape #545775 ΔE 0.033
- YInMn Blue #415A77 ΔE 0.033
- Dusk #4E5481 ΔE 0.055
- Denim #3B638C ΔE 0.062
- Dim Gray #696969 ΔE 0.062
- Petrol #005F6A ΔE 0.062
- Dark Green Blue #1F6357 ΔE 0.065
Use #4E5B66 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.