#303ea4

Color #303ea4

A moderately saturated medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 15.08 Nearest Tailwind class blue-800 #193cb8 · ΔE 3

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

Conversions

HEX

#303ea4

RGB

rgb(48, 62, 164)

HSL

hsl(232.8, 54.7%, 41.6%)

HSV / HSB

hsv(232.8, 70.7%, 64.3%)

CMYK

cmyk(70.7%, 62.2%, 0%, 35.7%)

LAB

lab(31.24, 29.56, -56.74)

LCH

lch(31.24, 63.98, 297.52)

OKLCH

oklch(41.9%, 0.1637, 271.36)

HWB

hwb(232.8, 18.8%, 35.7%)

Harmony colors

Complementary

#a49630

Analogous

#3078a4

#303ea4

#5c30a4

Triadic

#303ea4

#a4303e

#3ea430

Split-complementary

#303ea4

#a45c30

#78a430

Tetradic

#303ea4

#9630a4

#a49630

#3ea430

Square

#303ea4

#a43078

#a49630

#30a45c

Shades

Color #303ea4 mixed toward black.

#283489

#20296d

#181f52

#101537

#080a1b

Tints

Color #303ea4 mixed toward white.

#3f4fc7

#6572d2

#8c96dd

#b2b9e9

#d9dcf4

Tones

Color #303ea4 mixed toward gray.

#3a459a

#434d91

#4d5487

#575b7d

#606374

Accessibility

Aa White text on this color

8.93:1

Aa Black text on this color

2.35:1

White text reads better on this background (8.93:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#373793 · ΔE 3.4

Deuteranopia

#36358f · ΔE 4.1

Tritanopia

#318481 · ΔE 36.1

Achromatopsia

#494949 · ΔE 26.3

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

Code

CSS

background-color: #303ea4;

Tailwind (arbitrary value)

bg-[#303ea4]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#303ea4 (#303ea4) is rgb(48, 62, 164) in RGB.

No, #303ea4 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 #303ea4, or check how it holds up for accessibility.

Generate a palette → Check contrast