#303c71

Color #303c71

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 17.46 Nearest Tailwind class blue-900 #1c398e · ΔE 5.8

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

Conversions

HEX

#303c71

RGB

rgb(48, 60, 113)

HSL

hsl(228.9, 40.4%, 31.6%)

HSV / HSB

hsv(228.9, 57.5%, 44.3%)

CMYK

cmyk(57.5%, 46.9%, 0%, 55.7%)

LAB

lab(26.88, 12.18, -32.24)

LCH

lch(26.88, 34.46, 290.7)

OKLCH

oklch(37.4%, 0.0917, 271.75)

HWB

hwb(228.9, 18.8%, 55.7%)

Harmony colors

Complementary

#716530

Analogous

#305d71

#303c71

#453071

Triadic

#303c71

#71303c

#3c7130

Split-complementary

#303c71

#714530

#5d7130

Tetradic

#303c71

#653071

#716530

#3c7130

Square

#303c71

#71305d

#716530

#307145

Shades

Color #303c71 mixed toward black.

#28325e

#20284b

#181e39

#101426

#080a13

Tints

Color #303c71 mixed toward white.

#41529a

#5c6dba

#8592cb

#adb6dc

#d6dbee

Tones

Color #303c71 mixed toward gray.

#353f6c

#3b4366

#404661

#464a5b

#4b4d56

Accessibility

Aa White text on this color

10.45:1

Aa Black text on this color

2.01:1

White text reads better on this background (10.45:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#363667 · ΔE 3.7

Deuteranopia

#353465 · ΔE 4.2

Tritanopia

#315f5c · ΔE 26.4

Achromatopsia

#404040 · ΔE 20

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

Code

CSS

background-color: #303c71;

Tailwind (arbitrary value)

bg-[#303c71]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#303c71 (#303c71) is rgb(48, 60, 113) in RGB.

No, #303c71 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 #303c71, or check how it holds up for accessibility.

Generate a palette → Check contrast