#515966

Color #515966

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 9.76 Nearest Tailwind class gray-600 #4a5565 · ΔE 2.2

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#515966

RGB

rgb(81, 89, 102)

HSL

hsl(217.1, 11.5%, 35.9%)

HSV / HSB

hsv(217.1, 20.6%, 40%)

CMYK

cmyk(20.6%, 12.7%, 0%, 60%)

LAB

lab(37.58, -0.01, -8.51)

LCH

lch(37.58, 8.51, 269.93)

OKLCH

oklch(46.2%, 0.0234, 260.18)

HWB

hwb(217.1, 31.8%, 60%)

Harmony colors

Complementary

#665e51

Analogous

#516466

#515966

#545166

Triadic

#515966

#665159

#596651

Split-complementary

#515966

#665451

#646651

Tetradic

#515966

#5e5166

#665e51

#596651

Square

#515966

#665164

#665e51

#516654

Shades

Color #515966 mixed toward black.

#444a55

#363b44

#292d33

#1b1e22

#0e0f11

Tints

Color #515966 mixed toward white.

#697484

#858f9f

#a4abb7

#c2c7cf

#e1e3e7

Tones

Color #515966 mixed toward gray.

#535964

#555a63

#565a61

#585b5f

#5a5b5d

Accessibility

Aa White text on this color

7.07:1

Aa Black text on this color

2.97:1

White text reads better on this background (7.07:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#555563 · ΔE 4.6

Deuteranopia

#545362 · ΔE 5.5

Tritanopia

#516160 · ΔE 9.9

Achromatopsia

#585858 · ΔE 7.1

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #515966;

Tailwind (arbitrary value)

bg-[#515966]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#515966 (#515966) is rgb(81, 89, 102) in RGB.

No, #515966 is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #515966, or check how it holds up for accessibility.

Generate a palette → Check contrast