#3978d0

Color #3978d0

A moderately saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 11.59 Nearest Tailwind class blue-500 #2b7fff · ΔE 5.5

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

Conversions

HEX

#3978d0

RGB

rgb(57, 120, 208)

HSL

hsl(215, 61.6%, 52%)

HSV / HSB

hsv(215, 72.6%, 81.6%)

CMYK

cmyk(72.6%, 42.3%, 0%, 18.4%)

LAB

lab(50.52, 9.61, -51.32)

LCH

lch(50.52, 52.21, 280.61)

OKLCH

oklch(57.6%, 0.1503, 257.36)

HWB

hwb(215, 22.4%, 18.4%)

Harmony colors

Complementary

#d09139

Analogous

#39c3d0

#3978d0

#4639d0

Triadic

#3978d0

#d03978

#78d039

Split-complementary

#3978d0

#d04639

#c3d039

Tetradic

#3978d0

#9139d0

#d09139

#78d039

Square

#3978d0

#d039c3

#d09139

#39d046

Shades

Color #3978d0 mixed toward black.

#2a63b3

#224f8f

#193b6b

#112847

#081424

Tints

Color #3978d0 mixed toward white.

#5a8fd8

#7ba5e0

#9cbce7

#bdd2ef

#dee9f7

Tones

Color #3978d0 mixed toward gray.

#467ac3

#527cb7

#5f7eaa

#6b809e

#788391

Accessibility

Aa White text on this color

4.4:1

Aa Black text on this color

4.77:1

Black text reads better on this background (4.77:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#5b5cbf · ΔE 13.1

Deuteranopia

#5752bb · ΔE 15.8

Tritanopia

#3eb1ad · ΔE 32.2

Achromatopsia

#787878 · ΔE 24.1

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

Code

CSS

background-color: #3978d0;

Tailwind (arbitrary value)

bg-[#3978d0]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#3978d0 (#3978d0) is rgb(57, 120, 208) in RGB.

No, #3978d0 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.

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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 #3978d0, or check how it holds up for accessibility.

Generate a palette → Check contrast