#427cd7

Color #427cd7

A moderately saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 10.15 Nearest Tailwind class blue-500 #2b7fff · ΔE 4.1

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

Conversions

HEX

#427cd7

RGB

rgb(66, 124, 215)

HSL

hsl(216.6, 65.1%, 55.1%)

HSV / HSB

hsv(216.6, 69.3%, 84.3%)

CMYK

cmyk(69.3%, 42.3%, 0%, 15.7%)

LAB

lab(52.37, 10.96, -52.3)

LCH

lch(52.37, 53.44, 281.84)

OKLCH

oklch(59.3%, 0.1521, 259.13)

HWB

hwb(216.6, 25.9%, 15.7%)

Harmony colors

Complementary

#d79d42

Analogous

#42c7d7

#427cd7

#5242d7

Triadic

#427cd7

#d7427c

#7cd742

Split-complementary

#427cd7

#d75242

#c7d742

Tetradic

#427cd7

#9d42d7

#d79d42

#7cd742

Square

#427cd7

#d742c7

#d79d42

#42d752

Shades

Color #427cd7 mixed toward black.

#2964c1

#21509b

#193c74

#10284d

#081427

Tints

Color #427cd7 mixed toward white.

#6192de

#81a8e4

#a0beeb

#c0d3f2

#dfe9f8

Tones

Color #427cd7 mixed toward gray.

#4e7fcb

#5b82be

#6784b2

#7487a5

#808a99

Accessibility

Aa White text on this color

4.12:1

Aa Black text on this color

5.1:1

Black text reads better on this background (5.1:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6061c6 · ΔE 12.5

Deuteranopia

#5d58c1 · ΔE 15.1

Tritanopia

#46b7b3 · ΔE 32.5

Achromatopsia

#7d7d7d · ΔE 24.3

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

Code

CSS

background-color: #427cd7;

Tailwind (arbitrary value)

bg-[#427cd7]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#427cd7 (#427cd7) is rgb(66, 124, 215) in RGB.

No, #427cd7 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 #427cd7, or check how it holds up for accessibility.

Generate a palette → Check contrast