#515b6b

Color #515b6b

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 10.79 Nearest Tailwind class gray-600 #4a5565 · ΔE 2.2

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

Conversions

HEX

#515b6b

RGB

rgb(81, 91, 107)

HSL

hsl(216.9, 13.8%, 36.9%)

HSV / HSB

hsv(216.9, 24.3%, 42%)

CMYK

cmyk(24.3%, 15%, 0%, 58%)

LAB

lab(38.36, 0.04, -10.43)

LCH

lch(38.36, 10.43, 270.22)

OKLCH

oklch(46.9%, 0.0289, 259.82)

HWB

hwb(216.9, 31.8%, 58%)

Harmony colors

Complementary

#6b6151

Analogous

#51686b

#515b6b

#54516b

Triadic

#515b6b

#6b515b

#5b6b51

Split-complementary

#515b6b

#6b5451

#686b51

Tetradic

#515b6b

#61516b

#6b6151

#5b6b51

Square

#515b6b

#6b5168

#6b6151

#516b54

Shades

Color #515b6b mixed toward black.

#444c59

#363d47

#292e36

#1b1e24

#0e0f12

Tints

Color #515b6b mixed toward white.

#68758a

#8590a3

#a3acba

#c2c8d1

#e0e3e8

Tones

Color #515b6b mixed toward gray.

#535c69

#555c67

#585d65

#5a5d62

#5c5e60

Accessibility

Aa White text on this color

6.87:1

Aa Black text on this color

3.06:1

White text reads better on this background (6.87:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#565667 · ΔE 5.5

Deuteranopia

#555467 · ΔE 6.5

Tritanopia

#526464 · ΔE 10.7

Achromatopsia

#5a5a5a · ΔE 8.4

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

Code

CSS

background-color: #515b6b;

Tailwind (arbitrary value)

bg-[#515b6b]

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

#515b6b (#515b6b) is rgb(81, 91, 107) in RGB.

No, #515b6b 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 #515b6b, or check how it holds up for accessibility.

Generate a palette → Check contrast