#1b53b0

Color #1b53b0

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 16.13 Nearest Tailwind class sky-800 #00598a · ΔE 7.8

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

Conversions

HEX

#1b53b0

RGB

rgb(27, 83, 176)

HSL

hsl(217.4, 73.4%, 39.8%)

HSV / HSB

hsv(217.4, 84.7%, 69%)

CMYK

cmyk(84.7%, 52.8%, 0%, 31%)

LAB

lab(37.03, 17.86, -54.52)

LCH

lch(37.03, 57.37, 288.14)

OKLCH

oklch(46.3%, 0.1595, 260.22)

HWB

hwb(217.4, 10.6%, 31%)

Harmony colors

Complementary

#b0781b

Analogous

#1b9eb0

#1b53b0

#2d1bb0

Triadic

#1b53b0

#b01b53

#53b01b

Split-complementary

#1b53b0

#b02d1b

#9eb01b

Tetradic

#1b53b0

#781bb0

#b0781b

#53b01b

Square

#1b53b0

#b01b9e

#b0781b

#1bb02d

Shades

Color #1b53b0 mixed toward black.

#164593

#123775

#0d2a58

#091c3b

#040e1d

Tints

Color #1b53b0 mixed toward white.

#2268dc

#4e86e4

#7aa4eb

#a6c3f1

#d3e1f8

Tones

Color #1b53b0 mixed toward gray.

#2756a4

#345997

#405c8b

#4d5f7e

#596272

Accessibility

Aa White text on this color

7.21:1

Aa Black text on this color

2.91:1

White text reads better on this background (7.21:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3b3ba0 · ΔE 9.9

Deuteranopia

#38339b · ΔE 12

Tritanopia

#20918e · ΔE 35.1

Achromatopsia

#575757 · ΔE 25.1

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

Code

CSS

background-color: #1b53b0;

Tailwind (arbitrary value)

bg-[#1b53b0]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Royal Blue #4169e1

Dodger Blue #1e90ff

Frequently asked questions

#1b53b0 (#1b53b0) is rgb(27, 83, 176) in RGB.

No, #1b53b0 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 #1b53b0, or check how it holds up for accessibility.

Generate a palette → Check contrast