#1b58a7

Color #1b58a7

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 17.63 Nearest Tailwind class sky-800 #00598a · ΔE 5.9

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

Conversions

HEX

#1b58a7

RGB

rgb(27, 88, 167)

HSL

hsl(213.9, 72.2%, 38%)

HSV / HSB

hsv(213.9, 83.8%, 65.5%)

CMYK

cmyk(83.8%, 47.3%, 0%, 34.5%)

LAB

lab(37.84, 10.94, -47.86)

LCH

lch(37.84, 49.09, 282.88)

OKLCH

oklch(46.7%, 0.1412, 256.86)

HWB

hwb(213.9, 10.6%, 34.5%)

Harmony colors

Complementary

#a76a1b

Analogous

#1b9ea7

#1b58a7

#241ba7

Triadic

#1b58a7

#a71b58

#58a71b

Split-complementary

#1b58a7

#a7241b

#9ea71b

Tetradic

#1b58a7

#6a1ba7

#a76a1b

#58a71b

Square

#1b58a7

#a71b9e

#a76a1b

#1ba724

Shades

Color #1b58a7 mixed toward black.

#16498b

#123b6f

#0d2c53

#091d38

#040f1c

Tints

Color #1b58a7 mixed toward white.

#2270d4

#4a8ce2

#77a9e9

#a4c5f0

#d2e2f8

Tones

Color #1b58a7 mixed toward gray.

#27599b

#325b90

#3e5c84

#4a5e78

#555f6d

Accessibility

Aa White text on this color

7:1

Aa Black text on this color

3:1

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

Under color vision deficiencies

Protanopia

#3e3f99 · ΔE 11.3

Deuteranopia

#3b3695 · ΔE 13.7

Tritanopia

#218c89 · ΔE 31.7

Achromatopsia

#595959 · ΔE 23.4

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

Code

CSS

background-color: #1b58a7;

Tailwind (arbitrary value)

bg-[#1b58a7]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Cornflower Blue #6495ed

Alice Blue #f0f8ff

Frequently asked questions

#1b58a7 (#1b58a7) is rgb(27, 88, 167) in RGB.

No, #1b58a7 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 #1b58a7, or check how it holds up for accessibility.

Generate a palette → Check contrast