#516561
Closest named color: Slate (#516572). oklch(48.9% 0.025 181.7), rgb(81, 101, 97).
Aa
White text reads best on this color (6.20:1).
About this color
#516561 is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.028 away. White text reads best on it, at 6.20:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.38:1 |
| White text | 6.20:1 |
Values
| HEX | #516561 |
| RGB | rgb(81, 101, 97) |
| HSL | hsl(168, 11%, 36%) |
| OKLCH | oklch(48.9% 0.025 181.7) |
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 #516561 | 6.20:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #516561 | 3.38:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #516561 text on white | 6.20:1 | AA | Lc 80.9 | Fine for body text |
| #516561 text on black | 3.38:1 | AA large text | Lc -20.9 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D5DBD9
oklch(88.6% 0.007 174.4)
-
Step 300
300
#B9C3C1
oklch(80.9% 0.011 182.8)
-
Step 400
400
#94A5A1
oklch(70.7% 0.02 180)
-
Step 500
500
#7A8F8A
oklch(63.2% 0.025 179.5)
-
Step 600
600
#637974
oklch(55.7% 0.027 179.9)
-
Step 700
700 (this color)
#516561
oklch(48.9% 0.025 181.7)
-
Step 800
800
#435350
oklch(42.8% 0.021 182.7)
-
Step 900
900
#394542
oklch(37.9% 0.016 178.6)
-
Step 950
950
#212827
oklch(27% 0.01 186.1)
#516561 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) | #636361 | 0.026 |
| Deuteranopia (no green cones) | #5F6061 | 0.024 |
| Tritanopia (no blue cones) | #4C6664 | 0.007 |
| Achromatopsia (no color) | #616161 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516561
#516561
oklch(48.9% 0.025 181.7)
- #6D5A5F
#6D5A5F
oklch(48.8% 0.026 0.5)
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 #516561, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.028
- Dim Gray #696969 ΔE 0.040
- Dark Green Blue #1F6357 ΔE 0.057
- Dark Aqua #05696B ΔE 0.058
- YInMn Blue #415A77 ΔE 0.061
- Dusty Grape #545775 ΔE 0.062
- Dark Aquamarine #017371 ΔE 0.063
- Deep Turquoise #017374 ΔE 0.063
Use #516561 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.