#577ac1

Color #577ac1

A moderately saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 13.31 Nearest Tailwind class blue-500 #2b7fff · ΔE 7.2

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Conversions

HEX

#577ac1

RGB

rgb(87, 122, 193)

HSL

hsl(220.2, 46.1%, 54.9%)

HSV / HSB

hsv(220.2, 54.9%, 75.7%)

CMYK

cmyk(54.9%, 36.8%, 0%, 24.3%)

LAB

lab(51.6, 8.52, -40.95)

LCH

lch(51.6, 41.83, 281.75)

OKLCH

oklch(58.6%, 0.1166, 263.35)

HWB

hwb(220.2, 34.1%, 24.3%)

Harmony colors

Complementary

#c19e57

Analogous

#57afc1

#577ac1

#6957c1

Triadic

#577ac1

#c1577a

#7ac157

Split-complementary

#577ac1

#c16957

#afc157

Tetradic

#577ac1

#9e57c1

#c19e57

#7ac157

Square

#577ac1

#c157af

#c19e57

#57c169

Shades

Color #577ac1 mixed toward black.

#3f62aa

#324f88

#263b66

#192744

#0d1422

Tints

Color #577ac1 mixed toward white.

#7390cb

#8fa6d6

#abbce0

#c7d3ea

#e3e9f5

Tones

Color #577ac1 mixed toward gray.

#607db8

#6980af

#7183a7

#7a869e

#838995

Accessibility

Aa White text on this color

4.23:1

Aa Black text on this color

4.96:1

Black text reads better on this background (4.96:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6868b3 · ΔE 9.2

Deuteranopia

#6663b0 · ΔE 10.6

Tritanopia

#59a7a4 · ΔE 28.1

Achromatopsia

#7b7b7b · ΔE 21.7

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

Code

CSS

background-color: #577ac1;

Tailwind (arbitrary value)

bg-[#577ac1]

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

#577ac1 (#577ac1) is rgb(87, 122, 193) in RGB.

No, #577ac1 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 #577ac1, or check how it holds up for accessibility.

Generate a palette → Check contrast