#4287f5

Color #4287f5

A vivid, highly saturated light blue.

Closest named color Dodger Blue #1e90ff · ΔE 5.81 Nearest Tailwind class blue-500 #2b7fff · ΔE 2.7

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

Conversions

HEX

#4287f5

RGB

rgb(66, 135, 245)

HSL

hsl(216.9, 89.9%, 61%)

HSV / HSB

hsv(216.9, 73.1%, 96.1%)

CMYK

cmyk(73.1%, 44.9%, 0%, 3.9%)

LAB

lab(57.15, 14.95, -61.41)

LCH

lch(57.15, 63.2, 283.68)

OKLCH

oklch(63.5%, 0.179, 259.41)

HWB

hwb(216.9, 25.9%, 3.9%)

Harmony colors

Complementary

#f5b042

Analogous

#42e0f5

#4287f5

#5742f5

Triadic

#4287f5

#f54287

#87f542

Split-complementary

#4287f5

#f55742

#e0f542

Tetradic

#4287f5

#b042f5

#f5b042

#87f542

Square

#4287f5

#f542e0

#f5b042

#42f557

Shades

Color #4287f5 mixed toward black.

#1168f2

#0a52c5

#083e94

#052962

#031531

Tints

Color #4287f5 mixed toward white.

#629bf7

#81aff8

#a1c3fa

#c0d7fc

#e0ebfd

Tones

Color #4287f5 mixed toward gray.

#518ae6

#608ed7

#6f91c8

#7e95b9

#8d98aa

Accessibility

Aa White text on this color

3.49:1

Aa Black text on this color

6.02:1

Black text reads better on this background (6.02:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6768e1 · ΔE 13.3

Deuteranopia

#635edb · ΔE 16.3

Tritanopia

#47cfcb · ΔE 35.3

Achromatopsia

#898989 · ΔE 26.1

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

Code

CSS

background-color: #4287f5;

Tailwind (arbitrary value)

bg-[#4287f5]

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

#4287f5 (#4287f5) is rgb(66, 135, 245) in RGB.

No, #4287f5 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.

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Build something with this color

Generate a full palette from #4287f5, or check how it holds up for accessibility.

Generate a palette → Check contrast