#51639c

Color #51639c

A muted medium blue.

Closest named color Steel Blue #4682b4 · ΔE 16.56 Nearest Tailwind class slate-500 #62748e · ΔE 8.5

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Conversions

HEX

#51639c

RGB

rgb(81, 99, 156)

HSL

hsl(225.6, 31.6%, 46.5%)

HSV / HSB

hsv(225.6, 48.1%, 61.2%)

CMYK

cmyk(48.1%, 36.5%, 0%, 38.8%)

LAB

lab(42.87, 9.38, -33.16)

LCH

lch(42.87, 34.46, 285.79)

OKLCH

oklch(51.1%, 0.0934, 269.57)

HWB

hwb(225.6, 31.8%, 38.8%)

Harmony colors

Complementary

#9c8a51

Analogous

#51899c

#51639c

#65519c

Triadic

#51639c

#9c5163

#639c51

Split-complementary

#51639c

#9c6551

#899c51

Tetradic

#51639c

#8a519c

#9c8a51

#639c51

Square

#51639c

#9c5189

#9c8a51

#519c65

Shades

Color #51639c mixed toward black.

#445382

#364268

#29324e

#1b2134

#0e111a

Tints

Color #51639c mixed toward white.

#697bb1

#8795c1

#a5b0d0

#c3cae0

#e1e5ef

Tones

Color #51639c mixed toward gray.

#576696

#5e6a90

#646d89

#6a7083

#70737d

Accessibility

Aa White text on this color

5.81:1

Aa Black text on this color

3.61:1

White text reads better on this background (5.81:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#595991 · ΔE 5.5

Deuteranopia

#58578e · ΔE 6.1

Tritanopia

#528785 · ΔE 26

Achromatopsia

#656565 · ΔE 19.8

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

Code

CSS

background-color: #51639c;

Tailwind (arbitrary value)

bg-[#51639c]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#51639c (#51639c) is rgb(81, 99, 156) in RGB.

No, #51639c 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.

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Contrast Checker

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

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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 #51639c, or check how it holds up for accessibility.

Generate a palette → Check contrast