#555E4F
Closest named color: Slate (#516572). oklch(46.9% 0.026 132.8), rgb(85, 94, 79).
Aa
White text reads best on this color (6.77:1).
About this color
#555E4F is a medium-dark close to neutral grey. In OKLCH its lightness is 47%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.053 away. White text reads best on it, at 6.77:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.10:1 |
| White text | 6.77:1 |
Values
| HEX | #555E4F |
| RGB | rgb(85, 94, 79) |
| HSL | hsl(96, 9%, 34%) |
| OKLCH | oklch(46.9% 0.026 132.8) |
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 #555E4F | 6.77:1 | AA | Lc -88.4 | Fine for body text |
| Black text on #555E4F | 3.10:1 | AA large text | Lc 20.7 | Dividers and decoration only |
| #555E4F text on white | 6.77:1 | AA | Lc 83.4 | Fine for body text |
| #555E4F text on black | 3.10:1 | AA large text | Lc -18.6 | 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
#F5F6F4
oklch(97.2% 0.003 128.5)
-
Step 100
100
#E9EAE8
oklch(93.6% 0.003 128.5)
-
Step 200
200
#D7DAD5
oklch(88.5% 0.007 132.4)
-
Step 300
300
#BDC2BA
oklch(80.8% 0.012 133.4)
-
Step 400
400
#9CA397
oklch(70.6% 0.019 131.9)
-
Step 500
500
#838D7D
oklch(63% 0.026 133.6)
-
Step 600
600
#6D7766
oklch(55.6% 0.028 132.3)
-
Step 700
700 (this color)
#555E4F
oklch(46.9% 0.026 132.8)
-
Step 800
800
#4A5246
oklch(42.8% 0.022 135.1)
-
Step 900
900
#3E443A
oklch(37.8% 0.018 132.7)
-
Step 950
950
#242822
oklch(27.1% 0.012 135.1)
#555E4F 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) | #5F5C4E | 0.016 |
| Deuteranopia (no green cones) | #5E5B50 | 0.017 |
| Tritanopia (no blue cones) | #555D5A | 0.019 |
| Achromatopsia (no color) | #5B5B5B | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555E4F
#555E4F
oklch(46.9% 0.026 132.8)
- #605765
#605765
oklch(47% 0.025 313.7)
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 #555E4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.053
- Dark Green Blue #1F6357 ΔE 0.057
- Dim Gray #696969 ΔE 0.058
- Dark Moss Green #606C38 ΔE 0.064
- Camo Green #526525 ΔE 0.067
- Dark Olive Green #556B2F ΔE 0.069
- Pine #2B5D34 ΔE 0.072
- Dark Aqua #05696B ΔE 0.072
Use #555E4F 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.