#3657fb

Color #3657fb

A vivid, highly saturated medium blue.

Closest named color Medium Slate Blue #7b68ee · ΔE 20.82 Nearest Tailwind class blue-600 #155dfc · ΔE 2.7

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

Conversions

HEX

#3657fb

RGB

rgb(54, 87, 251)

HSL

hsl(229.9, 96.1%, 59.8%)

HSV / HSB

hsv(229.9, 78.5%, 98.4%)

CMYK

cmyk(78.5%, 65.3%, 0%, 1.6%)

LAB

lab(45.03, 45.49, -84.46)

LCH

lch(45.03, 95.93, 298.31)

OKLCH

oklch(54.4%, 0.2448, 267.8)

HWB

hwb(229.9, 21.2%, 1.6%)

Harmony colors

Complementary

#fbda36

Analogous

#36bafb

#3657fb

#7736fb

Triadic

#3657fb

#fb3657

#57fb36

Split-complementary

#3657fb

#fb7736

#bafb36

Tetradic

#3657fb

#da36fb

#fbda36

#57fb36

Square

#3657fb

#fb36ba

#fbda36

#36fb77

Shades

Color #3657fb mixed toward black.

#052ef9

#0425c7

#031c96

#021264

#010932

Tints

Color #3657fb mixed toward white.

#5773fc

#798ffc

#9aabfd

#bcc7fe

#dde3fe

Tones

Color #3657fb mixed toward gray.

#4662eb

#576dda

#6778ca

#7883b9

#888ea9

Accessibility

Aa White text on this color

5.37:1

Aa Black text on this color

3.91:1

White text reads better on this background (5.37:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4747e1 · ΔE 5.8

Deuteranopia

#4542da · ΔE 7.4

Tritanopia

#38cac4 · ΔE 46.3

Achromatopsia

#6b6b6b · ΔE 30.4

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

Code

CSS

background-color: #3657fb;

Tailwind (arbitrary value)

bg-[#3657fb]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#3657fb (#3657fb) is rgb(54, 87, 251) in RGB.

No, #3657fb 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 #3657fb, or check how it holds up for accessibility.

Generate a palette → Check contrast