#51596b

Color #51596b

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 10.94 Nearest Tailwind class gray-600 #4a5565 · ΔE 2.6

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

Conversions

HEX

#51596b

RGB

rgb(81, 89, 107)

HSL

hsl(221.5, 13.8%, 36.9%)

HSV / HSB

hsv(221.5, 24.3%, 42%)

CMYK

cmyk(24.3%, 16.8%, 0%, 58%)

LAB

lab(37.76, 1.27, -11.33)

LCH

lch(37.76, 11.4, 276.4)

OKLCH

oklch(46.4%, 0.031, 266.3)

HWB

hwb(221.5, 31.8%, 58%)

Harmony colors

Complementary

#6b6351

Analogous

#51666b

#51596b

#56516b

Triadic

#51596b

#6b5159

#596b51

Split-complementary

#51596b

#6b5651

#666b51

Tetradic

#51596b

#63516b

#6b6351

#596b51

Square

#51596b

#6b5166

#6b6351

#516b56

Shades

Color #51596b mixed toward black.

#444a59

#363b47

#292d36

#1b1e24

#0e0f12

Tints

Color #51596b mixed toward white.

#68738a

#858ea3

#a3aaba

#c2c7d1

#e0e3e8

Tones

Color #51596b mixed toward gray.

#535a69

#555b67

#585c65

#5a5c62

#5c5d60

Accessibility

Aa White text on this color

7.02:1

Aa Black text on this color

2.99:1

White text reads better on this background (7.02:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#555567 · ΔE 4.2

Deuteranopia

#545366 · ΔE 5

Tritanopia

#516463 · ΔE 12.9

Achromatopsia

#595959 · ΔE 9.1

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

Code

CSS

background-color: #51596b;

Tailwind (arbitrary value)

bg-[#51596b]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#51596b (#51596b) is rgb(81, 89, 107) in RGB.

No, #51596b 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.

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Build something with this color

Generate a full palette from #51596b, or check how it holds up for accessibility.

Generate a palette → Check contrast