#4B4E57
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.4% 0.015 271), rgb(75, 78, 87).
Aa
White text reads best on this color (8.31:1).
About this color
#4B4E57 is a dark close to neutral grey. In OKLCH its lightness is 42%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.043 away. White text reads best on it, at 8.31:1.
| Hue family | Neutrals |
| Lightness | dark (42%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.52:1 |
| White text | 8.31:1 |
Values
| HEX | #4B4E57 |
| RGB | rgb(75, 78, 87) |
| HSL | hsl(225, 7%, 32%) |
| OKLCH | oklch(42.4% 0.015 271) |
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 #4B4E57 | 8.31:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #4B4E57 | 2.52:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #4B4E57 text on white | 8.31:1 | AAA | Lc 88.7 | Fine for body text |
| #4B4E57 text on black | 2.52:1 | Fails | Lc -13.5 | Not readable |
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 800.
-
Step 50
50
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E9EAEC
oklch(93.7% 0.003 264.5)
-
Step 200
200
#D8D9DC
oklch(88.5% 0.004 271.4)
-
Step 300
300
#BEC0C7
oklch(80.8% 0.01 273.3)
-
Step 400
400
#9DA0AA
oklch(70.6% 0.015 272.6)
-
Step 500
500
#858995
oklch(63.1% 0.019 271.1)
-
Step 600
600
#6F737F
oklch(55.6% 0.019 271.1)
-
Step 700
700
#5D606C
oklch(49.1% 0.019 274.5)
-
Step 800
800 (this color)
#4B4E57
oklch(42.4% 0.015 271)
-
Step 900
900
#3F4148
oklch(37.6% 0.012 273.1)
-
Step 950
950
#25262A
oklch(26.9% 0.008 274.7)
#4B4E57 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) | #4C4F57 | 0.004 |
| Deuteranopia (no green cones) | #4B4E57 | 0.000 |
| Tritanopia (no blue cones) | #485051 | 0.015 |
| Achromatopsia (no color) | #4E4E4E | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4E57
#4B4E57
oklch(42.4% 0.015 271)
- #514E45
#514E45
oklch(42.4% 0.015 91.7)
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 #4B4E57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dusty Grape #545775 ΔE 0.054
- YInMn Blue #415A77 ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.058
- Charcoal #264653 ΔE 0.060
- Deep Teal #00555A ΔE 0.068
- Dusk #4E5481 ΔE 0.069
Use #4B4E57 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.