#3998df

Color #3998df

A vivid, highly saturated medium blue.

Closest named color Steel Blue #4682b4 · ΔE 14.22 Nearest Tailwind class sky-500 #00a6f4 · ΔE 5

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

Conversions

HEX

#3998df

RGB

rgb(57, 152, 223)

HSL

hsl(205.7, 72.2%, 54.9%)

HSV / HSB

hsv(205.7, 74.4%, 87.5%)

CMYK

cmyk(74.4%, 31.8%, 0%, 12.5%)

LAB

lab(60.47, -4.09, -43.95)

LCH

lch(60.47, 44.14, 264.68)

OKLCH

oklch(65.7%, 0.1376, 245.02)

HWB

hwb(205.7, 22.4%, 12.5%)

Harmony colors

Complementary

#df8039

Analogous

#39dfd3

#3998df

#3945df

Triadic

#3998df

#df3998

#98df39

Split-complementary

#3998df

#df3945

#dfd339

Tetradic

#3998df

#8039df

#df8039

#98df39

Square

#3998df

#d339df

#df8039

#45df39

Shades

Color #3998df mixed toward black.

#2081c9

#1a67a1

#134d79

#0d3350

#061a28

Tints

Color #3998df mixed toward white.

#5aa9e4

#7bbaea

#9ccbef

#bdddf4

#deeefa

Tones

Color #3998df mixed toward gray.

#4796d1

#5594c3

#6292b6

#7090a8

#7e8e9a

Accessibility

Aa White text on this color

3.12:1

Aa Black text on this color

6.73:1

Black text reads better on this background (6.73:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6f70d1 · ΔE 19.4

Deuteranopia

#6a62cd · ΔE 23.3

Tritanopia

#42c4c2 · ΔE 25.7

Achromatopsia

#929292 · ΔE 22.2

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

Code

CSS

background-color: #3998df;

Tailwind (arbitrary value)

bg-[#3998df]

Related colors

Steel Blue #4682b4

Charcoal #36454f

Alice Blue #f0f8ff

Light Sky Blue #87cefa

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#3998df (#3998df) is rgb(57, 152, 223) in RGB.

No, #3998df 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 #3998df, or check how it holds up for accessibility.

Generate a palette → Check contrast