#516660
Closest named color: Slate (#516572). oklch(49.1% 0.027 175.9), rgb(81, 102, 96).
Aa
White text reads best on this color (6.14:1).
About this color
#516660 is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.030 away. White text reads best on it, at 6.14:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #516660 |
| RGB | rgb(81, 102, 96) |
| HSL | hsl(163, 11%, 36%) |
| OKLCH | oklch(49.1% 0.027 175.9) |
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 #516660 | 6.14:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #516660 | 3.41:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #516660 text on white | 6.14:1 | AA | Lc 80.7 | Fine for body text |
| #516660 text on black | 3.41:1 | AA large text | Lc -21.2 | 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
#D4DBD9
oklch(88.5% 0.008 177.3)
-
Step 300
300
#B8C3C0
oklch(80.8% 0.013 177.9)
-
Step 400
400
#94A5A0
oklch(70.7% 0.02 176.2)
-
Step 500
500
#798F89
oklch(63.1% 0.027 177.1)
-
Step 600
600
#627972
oklch(55.6% 0.029 174.8)
-
Step 700
700 (this color)
#516660
oklch(49.1% 0.027 175.9)
-
Step 800
800
#42534E
oklch(42.6% 0.023 175.4)
-
Step 900
900
#384541
oklch(37.7% 0.018 174.7)
-
Step 950
950
#212826
oklch(26.9% 0.011 176.4)
#516660 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) | #646360 | 0.028 |
| Deuteranopia (no green cones) | #606060 | 0.027 |
| Tritanopia (no blue cones) | #4C6764 | 0.008 |
| Achromatopsia (no color) | #626262 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516660
#516660
oklch(49.1% 0.027 175.9)
- #6E5B61
#6E5B61
oklch(49.2% 0.026 357.2)
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 #516660, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.030
- Dim Gray #696969 ΔE 0.040
- Dark Green Blue #1F6357 ΔE 0.057
- Dark Aqua #05696B ΔE 0.058
- Dark Aquamarine #017371 ΔE 0.062
- Deep Turquoise #017374 ΔE 0.062
- YInMn Blue #415A77 ΔE 0.065
- Dusty Grape #545775 ΔE 0.066
Use #516660 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.