#287dff

Color #287dff

A vivid, highly saturated medium blue.

Closest named color Royal Blue #4169e1 · ΔE 9.85 Nearest Tailwind class blue-500 #2b7fff · ΔE 0.7

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

Conversions

HEX

#287dff

RGB

rgb(40, 125, 255)

HSL

hsl(216.3, 100%, 57.8%)

HSV / HSB

hsv(216.3, 84.3%, 100%)

CMYK

cmyk(84.3%, 51%, 0%, 0%)

LAB

lab(54.38, 22.26, -71.44)

LCH

lch(54.38, 74.83, 287.31)

OKLCH

oklch(61.4%, 0.2096, 259.36)

HWB

hwb(216.3, 15.7%, 0%)

Harmony colors

Complementary

#ffaa28

Analogous

#28e8ff

#287dff

#3e28ff

Triadic

#287dff

#ff287d

#7dff28

Split-complementary

#287dff

#ff3e28

#e8ff28

Tetradic

#287dff

#aa28ff

#ffaa28

#7dff28

Square

#287dff

#ff28e8

#ffaa28

#28ff3e

Shades

Color #287dff mixed toward black.

#0061f6

#004ec5

#003a93

#002762

#001331

Tints

Color #287dff mixed toward white.

#4c92ff

#70a8ff

#93beff

#b7d4ff

#dbe9ff

Tones

Color #287dff mixed toward gray.

#3a81ed

#4c84db

#5e88c9

#708cb7

#8190a5

Accessibility

Aa White text on this color

3.84:1

Aa Black text on this color

5.47:1

Black text reads better on this background (5.47:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#595ae8 · ΔE 13.8

Deuteranopia

#554ee2 · ΔE 17.2

Tritanopia

#31d4cf · ΔE 39.5

Achromatopsia

#828282 · ΔE 27.9

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

Code

CSS

background-color: #287dff;

Tailwind (arbitrary value)

bg-[#287dff]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#287dff (#287dff) is rgb(40, 125, 255) in RGB.

No, #287dff 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 #287dff, or check how it holds up for accessibility.

Generate a palette → Check contrast