#133979

Color #133979

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 14.84 Nearest Tailwind class blue-900 #1c398e · ΔE 3.8

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

Conversions

HEX

#133979

RGB

rgb(19, 57, 121)

HSL

hsl(217.6, 72.9%, 27.5%)

HSV / HSB

hsv(217.6, 84.3%, 47.5%)

CMYK

cmyk(84.3%, 52.9%, 0%, 52.5%)

LAB

lab(25.09, 12.48, -40.27)

LCH

lch(25.09, 42.16, 287.22)

OKLCH

oklch(35.8%, 0.1177, 260.31)

HWB

hwb(217.6, 7.5%, 52.5%)

Harmony colors

Complementary

#795313

Analogous

#136c79

#133979

#201379

Triadic

#133979

#791339

#397913

Split-complementary

#133979

#792013

#6c7913

Tetradic

#133979

#531379

#795313

#397913

Square

#133979

#79136c

#795313

#137920

Shades

Color #133979 mixed toward black.

#103065

#0d2651

#0a1d3d

#061328

#030a14

Tints

Color #133979 mixed toward white.

#1b52af

#2a6dde

#5f91e6

#94b6ee

#cadaf7

Tones

Color #133979 mixed toward gray.

#1c3b71

#243d68

#2d4060

#354257

#3e444f

Accessibility

Aa White text on this color

11.12:1

Aa Black text on this color

1.89:1

White text reads better on this background (11.12:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#28296e · ΔE 7.4

Deuteranopia

#26236b · ΔE 9

Tritanopia

#166461 · ΔE 28.8

Achromatopsia

#3b3b3b · ΔE 21.9

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

Code

CSS

background-color: #133979;

Tailwind (arbitrary value)

bg-[#133979]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#133979 (#133979) is rgb(19, 57, 121) in RGB.

No, #133979 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 #133979, or check how it holds up for accessibility.

Generate a palette → Check contrast