#4B554E
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43.8% 0.017 155.1), rgb(75, 85, 78).
Aa
White text reads best on this color (7.75:1).
About this color
#4B554E is a dark close to neutral grey. In OKLCH its lightness is 44%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.045 away. White text reads best on it, at 7.75:1.
| Hue family | Neutrals |
| Lightness | dark (44%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #4B554E |
| RGB | rgb(75, 85, 78) |
| HSL | hsl(138, 6%, 31%) |
| OKLCH | oklch(43.8% 0.017 155.1) |
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 #4B554E | 7.75:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #4B554E | 2.70:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #4B554E text on white | 7.75:1 | AAA | Lc 86.9 | Fine for body text |
| #4B554E text on black | 2.70:1 | Fails | Lc -15.2 | 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
#D6DAD7
oklch(88.4% 0.006 153.8)
-
Step 300
300
#BCC3BE
oklch(81% 0.01 155)
-
Step 400
400
#99A49C
oklch(70.8% 0.017 154.3)
-
Step 500
500
#808D84
oklch(63% 0.02 155.6)
-
Step 600
600
#6A776E
oklch(55.6% 0.021 155.4)
-
Step 700
700
#58645C
oklch(49% 0.019 156.4)
-
Step 800
800 (this color)
#4B554E
oklch(43.8% 0.017 155.1)
-
Step 900
900
#3C443E
oklch(37.7% 0.015 153.2)
-
Step 950
950
#232825
oklch(27.1% 0.009 159.4)
#4B554E 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) | #55534E | 0.016 |
| Deuteranopia (no green cones) | #53524E | 0.015 |
| Tritanopia (no blue cones) | #4A5553 | 0.008 |
| Achromatopsia (no color) | #525252 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B554E
#4B554E
oklch(43.8% 0.017 155.1)
- #584F56
#584F56
oklch(43.9% 0.016 333.4)
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 #4B554E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.057
- YInMn Blue #415A77 ΔE 0.065
- Deep Teal #00555A ΔE 0.066
- Slate #516572 ΔE 0.066
- Dusty Grape #545775 ΔE 0.066
- Petrol #005F6A ΔE 0.068
- Charcoal Grey #3C4142 ΔE 0.069
Use #4B554E 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.