#303f6f

Color #303f6f

A muted dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 20.97 Nearest Tailwind class blue-900 #1c398e · ΔE 6.4

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

Conversions

HEX

#303f6f

RGB

rgb(48, 63, 111)

HSL

hsl(225.7, 39.6%, 31.2%)

HSV / HSB

hsv(225.7, 56.8%, 43.5%)

CMYK

cmyk(56.8%, 43.2%, 0%, 56.5%)

LAB

lab(27.66, 9.4, -29.73)

LCH

lch(27.66, 31.18, 287.55)

OKLCH

oklch(38%, 0.0843, 269.05)

HWB

hwb(225.7, 18.8%, 56.5%)

Harmony colors

Complementary

#6f6030

Analogous

#305f6f

#303f6f

#41306f

Triadic

#303f6f

#6f303f

#3f6f30

Split-complementary

#303f6f

#6f4130

#5f6f30

Tetradic

#303f6f

#60306f

#6f6030

#3f6f30

Square

#303f6f

#6f305f

#6f6030

#306f41

Shades

Color #303f6f mixed toward black.

#28355d

#202a4a

#182038

#101525

#080b13

Tints

Color #303f6f mixed toward white.

#425698

#5c72b8

#8595ca

#adb8dc

#d6dced

Tones

Color #303f6f mixed toward gray.

#35426a

#3b4565

#40475f

#454a5a

#4a4d55

Accessibility

Aa White text on this color

10.16:1

Aa Black text on this color

2.07:1

White text reads better on this background (10.16:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#373766 · ΔE 4.5

Deuteranopia

#363564 · ΔE 5.1

Tritanopia

#315e5c · ΔE 24.8

Achromatopsia

#414141 · ΔE 18.8

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

Code

CSS

background-color: #303f6f;

Tailwind (arbitrary value)

bg-[#303f6f]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#303f6f (#303f6f) is rgb(48, 63, 111) in RGB.

No, #303f6f 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.

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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 #303f6f, or check how it holds up for accessibility.

Generate a palette → Check contrast