#303d6a

Color #303d6a

A muted dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 22.52 Nearest Tailwind class slate-700 #314158 · ΔE 6.8

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Conversions

HEX

#303d6a

RGB

rgb(48, 61, 106)

HSL

hsl(226.6, 37.7%, 30.2%)

HSV / HSB

hsv(226.6, 54.7%, 41.6%)

CMYK

cmyk(54.7%, 42.5%, 0%, 58.4%)

LAB

lab(26.75, 8.98, -27.97)

LCH

lch(26.75, 29.38, 287.8)

OKLCH

oklch(37.2%, 0.0792, 270.07)

HWB

hwb(226.6, 18.8%, 58.4%)

Harmony colors

Complementary

#6a5d30

Analogous

#305a6a

#303d6a

#40306a

Triadic

#303d6a

#6a303d

#3d6a30

Split-complementary

#303d6a

#6a4030

#5a6a30

Tetradic

#303d6a

#5d306a

#6a5d30

#3d6a30

Square

#303d6a

#6a305a

#6a5d30

#306a40

Shades

Color #303d6a mixed toward black.

#283358

#202947

#181e35

#101423

#080a12

Tints

Color #303d6a mixed toward white.

#425493

#5c70b5

#8493c8

#adb7da

#d6dbed

Tones

Color #303d6a mixed toward gray.

#354065

#3a4260

#3e455c

#434857

#484a52

Accessibility

Aa White text on this color

10.49:1

Aa Black text on this color

2:1

White text reads better on this background (10.49:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#363661 · ΔE 4.2

Deuteranopia

#35345f · ΔE 4.7

Tritanopia

#315a58 · ΔE 24.3

Achromatopsia

#3f3f3f · ΔE 18.2

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

Code

CSS

background-color: #303d6a;

Tailwind (arbitrary value)

bg-[#303d6a]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#303d6a (#303d6a) is rgb(48, 61, 106) in RGB.

No, #303d6a 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 #303d6a, or check how it holds up for accessibility.

Generate a palette → Check contrast