#3577f1

Color #3577f1

A vivid, highly saturated medium blue.

Closest named color Royal Blue #4169e1 · ΔE 6.46 Nearest Tailwind class blue-500 #2b7fff · ΔE 3.2

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

Conversions

HEX

#3577f1

RGB

rgb(53, 119, 241)

HSL

hsl(218.9, 87%, 57.6%)

HSV / HSB

hsv(218.9, 78%, 94.5%)

CMYK

cmyk(78%, 50.6%, 0%, 5.5%)

LAB

lab(52.17, 21.9, -67.23)

LCH

lch(52.17, 70.71, 288.04)

OKLCH

oklch(59.5%, 0.1958, 261.34)

HWB

hwb(218.9, 20.8%, 5.5%)

Harmony colors

Complementary

#f1af35

Analogous

#35d5f1

#3577f1

#5135f1

Triadic

#3577f1

#f13577

#77f135

Split-complementary

#3577f1

#f15135

#d5f135

Tetradic

#3577f1

#af35f1

#f1af35

#77f135

Square

#3577f1

#f135d5

#f1af35

#35f151

Shades

Color #3577f1 mixed toward black.

#105be5

#0d49b7

#0a3689

#06245c

#03122e

Tints

Color #3577f1 mixed toward white.

#578ef3

#78a4f6

#9abbf8

#bcd2fa

#dde8fd

Tones

Color #3577f1 mixed toward gray.

#447ce1

#5480d2

#6485c2

#748ab2

#838ea3

Accessibility

Aa White text on this color

4.15:1

Aa Black text on this color

5.06:1

Black text reads better on this background (5.06:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#595adb · ΔE 11.9

Deuteranopia

#5550d6 · ΔE 14.6

Tritanopia

#3bc8c4 · ΔE 38.3

Achromatopsia

#7c7c7c · ΔE 27.3

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

Code

CSS

background-color: #3577f1;

Tailwind (arbitrary value)

bg-[#3577f1]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#3577f1 (#3577f1) is rgb(53, 119, 241) in RGB.

No, #3577f1 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 #3577f1, or check how it holds up for accessibility.

Generate a palette → Check contrast