#557cdd

Color #557cdd

A moderately saturated light blue.

Closest named color Cornflower Blue #6495ed · ΔE 11.69 Nearest Tailwind class blue-500 #2b7fff · ΔE 4.7

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Conversions

HEX

#557cdd

RGB

rgb(85, 124, 221)

HSL

hsl(222.8, 66.7%, 60%)

HSV / HSB

hsv(222.8, 61.5%, 86.7%)

CMYK

cmyk(61.5%, 43.9%, 0%, 13.3%)

LAB

lab(53.56, 16.19, -53.73)

LCH

lch(53.56, 56.12, 286.77)

OKLCH

oklch(60.5%, 0.1538, 265.56)

HWB

hwb(222.8, 33.3%, 13.3%)

Harmony colors

Complementary

#ddb655

Analogous

#55c0dd

#557cdd

#7255dd

Triadic

#557cdd

#dd557c

#7cdd55

Split-complementary

#557cdd

#dd7255

#c0dd55

Tetradic

#557cdd

#b655dd

#ddb655

#7cdd55

Square

#557cdd

#dd55c0

#ddb655

#55dd72

Shades

Color #557cdd mixed toward black.

#2a5bd5

#2249aa

#193780

#112455

#08122b

Tints

Color #557cdd mixed toward white.

#7192e3

#8ea8e8

#aabdee

#c6d3f4

#e3e9f9

Tones

Color #557cdd mixed toward gray.

#6081d2

#6c86c6

#778abb

#828fb0

#8e94a4

Accessibility

Aa White text on this color

3.95:1

Aa Black text on this color

5.31:1

Black text reads better on this background (5.31:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6868cb · ΔE 9.1

Deuteranopia

#6663c6 · ΔE 10.7

Tritanopia

#57bbb7 · ΔE 33.5

Achromatopsia

#808080 · ΔE 24.9

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

Code

CSS

background-color: #557cdd;

Tailwind (arbitrary value)

bg-[#557cdd]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#557cdd (#557cdd) is rgb(85, 124, 221) in RGB.

No, #557cdd 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 #557cdd, or check how it holds up for accessibility.

Generate a palette → Check contrast