#51507a

Color #51507a

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 22.52 Nearest Tailwind class slate-600 #45556c · ΔE 9.3

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Conversions

HEX

#51507a

RGB

rgb(81, 80, 122)

HSL

hsl(241.4, 20.8%, 39.6%)

HSV / HSB

hsv(241.4, 34.4%, 47.8%)

CMYK

cmyk(33.6%, 34.4%, 0%, 52.2%)

LAB

lab(35.77, 11.08, -23.68)

LCH

lch(35.77, 26.14, 295.08)

OKLCH

oklch(45.1%, 0.0681, 284.36)

HWB

hwb(241.4, 31.4%, 52.2%)

Harmony colors

Complementary

#797a50

Analogous

#50647a

#51507a

#66507a

Triadic

#51507a

#7a5150

#507a51

Split-complementary

#51507a

#7a6650

#647a50

Tetradic

#51507a

#7a5079

#797a50

#507a51

Square

#51507a

#7a5064

#797a50

#507a66

Shades

Color #51507a mixed toward black.

#434366

#363551

#28283d

#1b1b29

#0d0d14

Tints

Color #51507a mixed toward white.

#666499

#8483ae

#a3a2c2

#c1c1d6

#e0e0eb

Tones

Color #51507a mixed toward gray.

#545376

#585773

#5b5a6f

#5e5e6c

#626168

Accessibility

Aa White text on this color

7.56:1

Aa Black text on this color

2.78:1

White text reads better on this background (7.56:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#515172 · ΔE 2.7

Deuteranopia

#51516f · ΔE 3.7

Tritanopia

#516a69 · ΔE 23.1

Achromatopsia

#545454 · ΔE 17.4

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

Code

CSS

background-color: #51507a;

Tailwind (arbitrary value)

bg-[#51507a]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#51507a (#51507a) is rgb(81, 80, 122) in RGB.

No, #51507a is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #51507a, or check how it holds up for accessibility.

Generate a palette → Check contrast