#555C4E
Closest named color: Slate (#516572). oklch(46.4% 0.024 129), rgb(85, 92, 78).
Aa
White text reads best on this color (6.93:1).
About this color
#555C4E 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 0.055 away. White text reads best on it, at 6.93:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.02:1 |
| White text | 6.93:1 |
Values
| HEX | #555C4E |
| RGB | rgb(85, 92, 78) |
| HSL | hsl(90, 8%, 33%) |
| OKLCH | oklch(46.4% 0.024 129) |
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 #555C4E | 6.93:1 | AA | Lc -89.0 | Fine for body text |
| Black text on #555C4E | 3.02:1 | AA large text | Lc 20.0 | Dividers and decoration only |
| #555C4E text on white | 6.93:1 | AA | Lc 84.0 | Fine for body text |
| #555C4E text on black | 3.02:1 | AA large text | Lc -17.9 | 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
#D8DAD5
oklch(88.5% 0.007 124.5)
-
Step 300
300
#BEC2BA
oklch(80.9% 0.012 128.6)
-
Step 400
400
#9DA397
oklch(70.7% 0.018 128.8)
-
Step 500
500
#858C7E
oklch(63% 0.022 128.9)
-
Step 600
600
#6F7667
oklch(55.5% 0.024 127.7)
-
Step 700
700 (this color)
#555C4E
oklch(46.4% 0.024 129)
-
Step 800
800
#4C5146
oklch(42.7% 0.019 127.2)
-
Step 900
900
#3F433B
oklch(37.6% 0.014 128.9)
-
Step 950
950
#252722
oklch(26.9% 0.01 124.9)
#555C4E 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) | #5E5A4D | 0.014 |
| Deuteranopia (no green cones) | #5C594F | 0.014 |
| Tritanopia (no blue cones) | #565B58 | 0.018 |
| Achromatopsia (no color) | #5A5A5A | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555C4E
#555C4E
oklch(46.4% 0.024 129)
- #5D5664
#5D5664
oklch(46.5% 0.024 307.9)
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 #555C4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.055
- Dark Green Blue #1F6357 ΔE 0.059
- Dim Gray #696969 ΔE 0.061
- Dark Moss Green #606C38 ΔE 0.069
- Camo Green #526525 ΔE 0.070
- Dusty Grape #545775 ΔE 0.070
- Dark Slate Gray #2F4F4F ΔE 0.071
- Pine #2B5D34 ΔE 0.072
Use #555C4E 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.