#556455
Closest named color: Slate (#516572). oklch(48.6% 0.03 145.1), rgb(85, 100, 85).
Aa
White text reads best on this color (6.28:1).
About this color
#556455 is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.045 away. White text reads best on it, at 6.28:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #556455 |
| RGB | rgb(85, 100, 85) |
| HSL | hsl(120, 8%, 36%) |
| OKLCH | oklch(48.6% 0.03 145.1) |
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 #556455 | 6.28:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #556455 | 3.34:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #556455 text on white | 6.28:1 | AA | Lc 81.3 | Fine for body text |
| #556455 text on black | 3.34:1 | AA large text | Lc -20.6 | 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
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E8EAE8
oklch(93.5% 0.003 145.5)
-
Step 200
200
#D6DAD6
oklch(88.4% 0.007 145.5)
-
Step 300
300
#BBC3BB
oklch(80.9% 0.014 145.4)
-
Step 400
400
#98A598
oklch(70.8% 0.024 145.3)
-
Step 500
500
#7F8F7F
oklch(63.2% 0.03 145.2)
-
Step 600
600
#687968
oklch(55.7% 0.033 145.1)
-
Step 700
700 (this color)
#556455
oklch(48.6% 0.03 145.1)
-
Step 800
800
#475347
oklch(42.8% 0.025 145.1)
-
Step 900
900
#3B443B
oklch(37.5% 0.019 145.2)
-
Step 950
950
#232823
oklch(27% 0.012 145.2)
#556455 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) | #656154 | 0.025 |
| Deuteranopia (no green cones) | #625F56 | 0.024 |
| Tritanopia (no blue cones) | #546360 | 0.019 |
| Achromatopsia (no color) | #606060 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556455
#556455
oklch(48.6% 0.03 145.1)
- #685A69
#685A69
oklch(48.6% 0.029 323.9)
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 #556455, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.045
- Dim Gray #696969 ΔE 0.046
- Dark Moss Green #606C38 ΔE 0.055
- Dark Green Blue #1F6357 ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.063
- Camo Green #526525 ΔE 0.066
- Dark Aqua #05696B ΔE 0.067
- Dark Taupe #7F684E ΔE 0.069
Use #556455 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.