#51657e

Color #51657e

A muted medium blue.

Closest named color Slate Gray #708090 · ΔE 12.26 Nearest Tailwind class slate-600 #45556c · ΔE 5.7

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Conversions

HEX

#51657e

RGB

rgb(81, 101, 126)

HSL

hsl(213.3, 21.7%, 40.6%)

HSV / HSB

hsv(213.3, 35.7%, 49.4%)

CMYK

cmyk(35.7%, 19.8%, 0%, 50.6%)

LAB

lab(42.1, -0.9, -16.36)

LCH

lch(42.1, 16.38, 266.85)

OKLCH

oklch(50%, 0.0469, 254.27)

HWB

hwb(213.3, 31.8%, 50.6%)

Harmony colors

Complementary

#7e6a51

Analogous

#517c7e

#51657e

#54517e

Triadic

#51657e

#7e5165

#657e51

Split-complementary

#51657e

#7e5451

#7c7e51

Tetradic

#51657e

#6a517e

#7e6a51

#657e51

Square

#51657e

#7e517c

#7e6a51

#517e54

Shades

Color #51657e mixed toward black.

#445469

#364354

#29333f

#1b222a

#0e1115

Tints

Color #51657e mixed toward white.

#657e9c

#8498b0

#a3b1c4

#c2cbd7

#e0e5eb

Tones

Color #51657e mixed toward gray.

#55657a

#596677

#5c6673

#60676f

#64676b

Accessibility

Aa White text on this color

5.98:1

Aa Black text on this color

3.51:1

White text reads better on this background (5.98:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#5a5b79 · ΔE 9.1

Deuteranopia

#595877 · ΔE 10.2

Tritanopia

#527473 · ΔE 15.4

Achromatopsia

#636363 · ΔE 12

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

Code

CSS

background-color: #51657e;

Tailwind (arbitrary value)

bg-[#51657e]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Cornflower Blue #6495ed

Alice Blue #f0f8ff

Frequently asked questions

#51657e (#51657e) is rgb(81, 101, 126) in RGB.

No, #51657e 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 #51657e, or check how it holds up for accessibility.

Generate a palette → Check contrast