#304c91

Color #304c91

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 13.23 Nearest Tailwind class blue-900 #1c398e · ΔE 6.1

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Conversions

HEX

#304c91

RGB

rgb(48, 76, 145)

HSL

hsl(222.7, 50.3%, 37.8%)

HSV / HSB

hsv(222.7, 66.9%, 56.9%)

CMYK

cmyk(66.9%, 47.6%, 0%, 43.1%)

LAB

lab(33.65, 13.15, -41.32)

LCH

lch(33.65, 43.36, 287.65)

OKLCH

oklch(43.3%, 0.1186, 265.21)

HWB

hwb(222.7, 18.8%, 43.1%)

Harmony colors

Complementary

#917530

Analogous

#307c91

#304c91

#443091

Triadic

#304c91

#91304c

#4c9130

Split-complementary

#304c91

#914430

#7c9130

Tetradic

#304c91

#753091

#917530

#4c9130

Square

#304c91

#91307c

#917530

#309144

Shades

Color #304c91 mixed toward black.

#283f79

#203361

#182648

#101930

#080d18

Tints

Color #304c91 mixed toward white.

#3d61b9

#607fca

#889fd8

#b0bfe5

#d7dff2

Tones

Color #304c91 mixed toward gray.

#384f89

#405381

#485679

#505a71

#585d68

Accessibility

Aa White text on this color

8.18:1

Aa Black text on this color

2.57:1

White text reads better on this background (8.18:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3e3e84 · ΔE 6.7

Deuteranopia

#3c3a81 · ΔE 7.7

Tritanopia

#327977 · ΔE 28.9

Achromatopsia

#4f4f4f · ΔE 22.2

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

Code

CSS

background-color: #304c91;

Tailwind (arbitrary value)

bg-[#304c91]

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

#304c91 (#304c91) is rgb(48, 76, 145) in RGB.

No, #304c91 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.

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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 #304c91, or check how it holds up for accessibility.

Generate a palette → Check contrast