#556163
Closest named color: Slate (#516572). oklch(48.3% 0.015 208.7), rgb(85, 97, 99).
Aa
White text reads best on this color (6.40:1).
About this color
#556163 is a medium-dark close to neutral grey. In OKLCH its lightness is 48%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.023 away. White text reads best on it, at 6.40:1.
| Hue family | Neutrals |
| Lightness | medium-dark (48%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.27:1 |
| White text | 6.40:1 |
Values
| HEX | #556163 |
| RGB | rgb(85, 97, 99) |
| HSL | hsl(189, 8%, 36%) |
| OKLCH | oklch(48.3% 0.015 208.7) |
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 #556163 | 6.40:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #556163 | 3.27:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #556163 text on white | 6.40:1 | AA | Lc 81.9 | Fine for body text |
| #556163 text on black | 3.27:1 | AA large text | Lc -20.0 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D6DADA
oklch(88.5% 0.004 197.1)
-
Step 300
300
#BBC2C3
oklch(80.9% 0.008 207.1)
-
Step 400
400
#99A3A4
oklch(70.8% 0.011 204.1)
-
Step 500
500
#808C8E
oklch(63.1% 0.014 208.7)
-
Step 600
600
#697678
oklch(55.6% 0.016 207.8)
-
Step 700
700 (this color)
#556163
oklch(48.3% 0.015 208.7)
-
Step 800
800
#475153
oklch(42.7% 0.013 211.1)
-
Step 900
900
#3C4344
oklch(37.7% 0.009 207.1)
-
Step 950
950
#232728
oklch(26.9% 0.006 214.4)
#556163 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) | #5F6063 | 0.015 |
| Deuteranopia (no green cones) | #5C5E63 | 0.013 |
| Tritanopia (no blue cones) | #516262 | 0.007 |
| Achromatopsia (no color) | #5F5F5F | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556163
#556163
oklch(48.3% 0.015 208.7)
- #675B5A
#675B5A
oklch(48.2% 0.016 23.4)
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 #556163, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.023
- Dim Gray #696969 ΔE 0.041
- Dusty Grape #545775 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.052
- Dark Green Blue #1F6357 ΔE 0.064
- Dark Aqua #05696B ΔE 0.065
- Denim #3B638C ΔE 0.070
- Petrol #005F6A ΔE 0.073
Use #556163 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.