#1d55af

Color #1d55af

A vivid, highly saturated medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 16.15 Nearest Tailwind class sky-800 #00598a · ΔE 7.4

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

Conversions

HEX

#1d55af

RGB

rgb(29, 85, 175)

HSL

hsl(217, 71.6%, 40%)

HSV / HSB

hsv(217, 83.4%, 68.6%)

CMYK

cmyk(83.4%, 51.4%, 0%, 31.4%)

LAB

lab(37.58, 16.3, -53.04)

LCH

lch(37.58, 55.49, 287.08)

OKLCH

oklch(46.7%, 0.1553, 259.8)

HWB

hwb(217, 11.4%, 31.4%)

Harmony colors

Complementary

#af771d

Analogous

#1d9eaf

#1d55af

#2e1daf

Triadic

#1d55af

#af1d55

#55af1d

Split-complementary

#1d55af

#af2e1d

#9eaf1d

Tetradic

#1d55af

#771daf

#af771d

#55af1d

Square

#1d55af

#af1d9e

#af771d

#1daf2e

Shades

Color #1d55af mixed toward black.

#184792

#133975

#0e2a58

#0a1c3a

#050e1d

Tints

Color #1d55af mixed toward white.

#246adb

#5088e2

#7ca6e9

#a7c3f1

#d3e1f8

Tones

Color #1d55af mixed toward gray.

#2958a3

#355b97

#415d8b

#4e607e

#5a6372

Accessibility

Aa White text on this color

7.07:1

Aa Black text on this color

2.97:1

White text reads better on this background (7.07:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3d3d9f · ΔE 10.2

Deuteranopia

#3a359b · ΔE 12.2

Tritanopia

#22918d · ΔE 34.7

Achromatopsia

#585858 · ΔE 24.8

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

Code

CSS

background-color: #1d55af;

Tailwind (arbitrary value)

bg-[#1d55af]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#1d55af (#1d55af) is rgb(29, 85, 175) in RGB.

No, #1d55af 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 #1d55af, or check how it holds up for accessibility.

Generate a palette → Check contrast