#255fef

Color #255fef

A vivid, highly saturated medium blue.

Closest named color Medium Slate Blue #7b68ee · ΔE 14.91 Nearest Tailwind class blue-600 #155dfc · ΔE 1.5

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

Conversions

HEX

#255fef

RGB

rgb(37, 95, 239)

HSL

hsl(222.8, 86.3%, 54.1%)

HSV / HSB

hsv(222.8, 84.5%, 93.7%)

CMYK

cmyk(84.5%, 60.3%, 0%, 6.3%)

LAB

lab(45.37, 34.99, -77.2)

LCH

lch(45.37, 84.76, 294.38)

OKLCH

oklch(54.2%, 0.2248, 263.74)

HWB

hwb(222.8, 14.5%, 6.3%)

Harmony colors

Complementary

#efb525

Analogous

#25c4ef

#255fef

#5025ef

Triadic

#255fef

#ef255f

#5fef25

Split-complementary

#255fef

#ef5025

#c4ef25

Tetradic

#255fef

#b525ef

#efb525

#5fef25

Square

#255fef

#ef25c4

#efb525

#25ef50

Shades

Color #255fef mixed toward black.

#1049d6

#0d3aab

#092c81

#061d56

#030f2b

Tints

Color #255fef mixed toward white.

#497af2

#6e94f4

#92aff7

#b6cafa

#dbe4fc

Tones

Color #255fef mixed toward gray.

#3666de

#476dcd

#5774bc

#687cac

#79839b

Accessibility

Aa White text on this color

5.3:1

Aa Black text on this color

3.96:1

White text reads better on this background (5.3:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4546d7 · ΔE 8.8

Deuteranopia

#423dd1 · ΔE 11.1

Tritanopia

#2ac2bd · ΔE 43.6

Achromatopsia

#6b6b6b · ΔE 29.2

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

Code

CSS

background-color: #255fef;

Tailwind (arbitrary value)

bg-[#255fef]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#255fef (#255fef) is rgb(37, 95, 239) in RGB.

No, #255fef 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 #255fef, or check how it holds up for accessibility.

Generate a palette → Check contrast