#4C554F
Closest named color: Dark Slate Gray (#2F4F4F). oklch(44% 0.015 156.6), rgb(76, 85, 79).
Aa
White text reads best on this color (7.72:1).
About this color
#4C554F is a dark close to neutral grey. In OKLCH its lightness is 44%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.046 away. White text reads best on it, at 7.72:1.
| Hue family | Neutrals |
| Lightness | dark (44%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.71:1 |
| White text | 7.72:1 |
Values
| HEX | #4C554F |
| RGB | rgb(76, 85, 79) |
| HSL | hsl(140, 6%, 32%) |
| OKLCH | oklch(44% 0.015 156.6) |
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 #4C554F | 7.72:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #4C554F | 2.71:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #4C554F text on white | 7.72:1 | AAA | Lc 86.8 | Fine for body text |
| #4C554F text on black | 2.71:1 | Fails | Lc -15.3 | 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 800.
-
Step 50
50
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E8EAE9
oklch(93.5% 0.003 165.1)
-
Step 200
200
#D7DAD8
oklch(88.5% 0.004 157.2)
-
Step 300
300
#BCC2BE
oklch(80.8% 0.009 157)
-
Step 400
400
#9AA39D
oklch(70.6% 0.013 156.9)
-
Step 500
500
#818D85
oklch(63.1% 0.018 156.7)
-
Step 600
600
#6B776F
oklch(55.7% 0.019 156.6)
-
Step 700
700
#59645C
oklch(49.1% 0.018 154.1)
-
Step 800
800 (this color)
#4C554F
oklch(44% 0.015 156.6)
-
Step 900
900
#3D443F
oklch(37.8% 0.012 154.7)
-
Step 950
950
#242825
oklch(27.2% 0.008 153.4)
#4C554F 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) | #55534F | 0.015 |
| Deuteranopia (no green cones) | #53524F | 0.014 |
| Tritanopia (no blue cones) | #4B5553 | 0.007 |
| Achromatopsia (no color) | #535353 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4C554F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.058
- YInMn Blue #415A77 ΔE 0.063
- Dusty Grape #545775 ΔE 0.064
- Slate #516572 ΔE 0.065
- Deep Teal #00555A ΔE 0.067
- Petrol #005F6A ΔE 0.068
- Charcoal Grey #3C4142 ΔE 0.070
Use #4C554F 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.