#556361
Closest named color: Slate (#516572). oklch(48.7% 0.017 186.2), rgb(85, 99, 97).
Aa
White text reads best on this color (6.28:1).
About this color
#556361 is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.026 away. White text reads best on it, at 6.28:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #556361 |
| RGB | rgb(85, 99, 97) |
| HSL | hsl(171, 8%, 36%) |
| OKLCH | oklch(48.7% 0.017 186.2) |
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 #556361 | 6.28:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #556361 | 3.34:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #556361 text on white | 6.28:1 | AA | Lc 81.3 | Fine for body text |
| #556361 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
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D6DAD9
oklch(88.5% 0.005 179.7)
-
Step 300
300
#BBC2C1
oklch(80.8% 0.008 186.8)
-
Step 400
400
#98A3A2
oklch(70.6% 0.013 190.3)
-
Step 500
500
#7E8D8B
oklch(63.1% 0.018 187.1)
-
Step 600
600
#687775
oklch(55.6% 0.018 186.9)
-
Step 700
700 (this color)
#556361
oklch(48.7% 0.017 186.2)
-
Step 800
800
#465250
oklch(42.7% 0.016 184.5)
-
Step 900
900
#3B4442
oklch(37.8% 0.012 180.8)
-
Step 950
950
#232827
oklch(27.1% 0.007 182.4)
#556361 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) | #616161 | 0.018 |
| Deuteranopia (no green cones) | #5F5F61 | 0.018 |
| Tritanopia (no blue cones) | #516462 | 0.006 |
| Achromatopsia (no color) | #606060 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556361
#556361
oklch(48.7% 0.017 186.2)
- #695C5E
#695C5E
oklch(48.8% 0.017 7.2)
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 #556361, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.026
- Dim Gray #696969 ΔE 0.038
- Dusty Grape #545775 ΔE 0.057
- YInMn Blue #415A77 ΔE 0.059
- Dark Green Blue #1F6357 ΔE 0.063
- Dark Aqua #05696B ΔE 0.064
- Dark Aquamarine #017371 ΔE 0.070
- Deep Turquoise #017374 ΔE 0.070
Use #556361 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.