#557bf7

Color #557bf7

A vivid, highly saturated light blue.

Closest named color Royal Blue #4169e1 · ΔE 7.13 Nearest Tailwind class blue-500 #2b7fff · ΔE 4.5

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

Conversions

HEX

#557bf7

RGB

rgb(85, 123, 247)

HSL

hsl(225.9, 91%, 65.1%)

HSV / HSB

hsv(225.9, 65.6%, 96.9%)

CMYK

cmyk(65.6%, 50.2%, 0%, 3.1%)

LAB

lab(54.88, 25.65, -66.14)

LCH

lch(54.88, 70.94, 291.2)

OKLCH

oklch(62%, 0.1899, 267.74)

HWB

hwb(225.9, 33.3%, 3.1%)

Harmony colors

Complementary

#f7d155

Analogous

#55ccf7

#557bf7

#8055f7

Triadic

#557bf7

#f7557b

#7bf755

Split-complementary

#557bf7

#f78055

#ccf755

Tetradic

#557bf7

#d155f7

#f7d155

#7bf755

Square

#557bf7

#f755cc

#f7d155

#55f780

Shades

Color #557bf7 mixed toward black.

#2052f5

#0a39d3

#072b9f

#051d6a

#020e35

Tints

Color #557bf7 mixed toward white.

#7191f8

#8ea7fa

#aabdfb

#c6d3fc

#e3e9fe

Tones

Color #557bf7 mixed toward gray.

#6382e9

#7089dc

#7e91ce

#8b98c1

#999fb4

Accessibility

Aa White text on this color

3.78:1

Aa Black text on this color

5.56:1

Black text reads better on this background (5.56:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6868e1 · ΔE 8

Deuteranopia

#6562db · ΔE 9.9

Tritanopia

#57cdc9 · ΔE 37.9

Achromatopsia

#838383 · ΔE 27.4

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

Code

CSS

background-color: #557bf7;

Tailwind (arbitrary value)

bg-[#557bf7]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#557bf7 (#557bf7) is rgb(85, 123, 247) in RGB.

No, #557bf7 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.

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 #557bf7, or check how it holds up for accessibility.

Generate a palette → Check contrast