#577bf9

Color #577bf9

A vivid, highly saturated light blue.

Closest named color Royal Blue #4169e1 · ΔE 7.46 Nearest Tailwind class blue-500 #2b7fff · ΔE 4.8

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

Conversions

HEX

#577bf9

RGB

rgb(87, 123, 249)

HSL

hsl(226.7, 93.1%, 65.9%)

HSV / HSB

hsv(226.7, 65.1%, 97.6%)

CMYK

cmyk(65.1%, 50.6%, 0%, 2.4%)

LAB

lab(55.1, 26.64, -66.88)

LCH

lch(55.1, 71.99, 291.72)

OKLCH

oklch(62.3%, 0.192, 268.36)

HWB

hwb(226.7, 34.1%, 2.4%)

Harmony colors

Complementary

#f9d557

Analogous

#57ccf9

#577bf9

#8457f9

Triadic

#577bf9

#f9577b

#7bf957

Split-complementary

#577bf9

#f98457

#ccf957

Tetradic

#577bf9

#d557f9

#f9d557

#7bf957

Square

#577bf9

#f957cc

#f9d557

#57f984

Shades

Color #577bf9 mixed toward black.

#2150f7

#0836d8

#0628a2

#041b6c

#020d36

Tints

Color #577bf9 mixed toward white.

#7391fa

#8fa7fb

#abbdfc

#c7d3fd

#e3e9fe

Tones

Color #577bf9 mixed toward gray.

#6582ec

#728ade

#8092d1

#8d99c3

#9ba1b6

Accessibility

Aa White text on this color

3.75:1

Aa Black text on this color

5.61:1

Black text reads better on this background (5.61:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6869e3 · ΔE 7.5

Deuteranopia

#6664dd · ΔE 9.2

Tritanopia

#59cfca · ΔE 38.4

Achromatopsia

#848484 · ΔE 27.5

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

Code

CSS

background-color: #577bf9;

Tailwind (arbitrary value)

bg-[#577bf9]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#577bf9 (#577bf9) is rgb(87, 123, 249) in RGB.

No, #577bf9 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.

Try it →

Build something with this color

Generate a full palette from #577bf9, or check how it holds up for accessibility.

Generate a palette → Check contrast