Palettes / Colors / #516366

#516366 — Stone Grey

#516366 is a gray color we call Stone Grey, closest to the named color DimGray (#696969). It belongs to the gray family.

Color name

Closest CSS keyword: dimgray (#696969) — not an exact match. CSS dimgray gives you #696969, a different color; use #516366 when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#516366 is a neutral gray color associated with neutrality and professionalism. It sits comfortably in the middle: usable for large areas in soft schemes, or as a supporting color beside something stronger.

Its strongest partner is its complement #665552; it also sits naturally between #52665F and #525966. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 32% · Green 39% · Blue 40%

Cyan 21% · Magenta 3% · Yellow 0% · Key 60%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #516366

.text { color: #516366; }
.background { background-color: #516366; }
.border { border: 3px solid #516366; }
.text-rgb { color: rgb(81, 99, 102); }
.text-hsl { color: hsl(189, 11%, 36%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #516366; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 99, 102, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #516366; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 99, 102, 0.8); }

HTML: <p style="color:#516366">Text here</p> · <div style="background-color:#516366">Div content here</div>

Shades of #516366

Tints of #516366

Tones of #516366

Color harmonies

Complementary — #665552:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #516366: #FFFFFF.

Semi-transparent (opacity) text on #516366

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

How #516366 looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Palettes with a similar color

These palettes use a close neighbour of #516366 rather than the exact color:

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

Browse neighbouring colors

← #516365  ·  #516367 →

Frequently asked questions

What color is #516366?

#516366 is Stone Grey, a gray color (RGB 81, 99, 102). Its closest standard named color is DimGray.

What is the RGB and HSL of #516366?

#516366 is RGB 81, 99, 102 — HSL 189°, 11%, 36% — CMYK 21%, 3%, 0%, 60%.

What colors go with #516366?

Its complement is #665552; analogous partners are #52665F and #525966. It also appears in 6+ palettes in our collection.

Can I use #516366 for text?

White text on #516366 has a contrast ratio of 6.31:1 (passes WCAG AA); black text gives 3.33:1.