#1f58b3

Color #1f58b3

A vivid, highly saturated medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 17.09 Nearest Tailwind class sky-800 #00598a · ΔE 7.5

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Conversions

HEX

#1f58b3

RGB

rgb(31, 88, 179)

HSL

hsl(216.9, 70.5%, 41.2%)

HSV / HSB

hsv(216.9, 82.7%, 70.2%)

CMYK

cmyk(82.7%, 50.8%, 0%, 29.8%)

LAB

lab(38.77, 16.08, -53.47)

LCH

lch(38.77, 55.84, 286.74)

OKLCH

oklch(47.7%, 0.1565, 259.7)

HWB

hwb(216.9, 12.2%, 29.8%)

Harmony colors

Complementary

#b37a1f

Analogous

#1fa2b3

#1f58b3

#301fb3

Triadic

#1f58b3

#b31f58

#58b31f

Split-complementary

#1f58b3

#b3301f

#a2b31f

Tetradic

#1f58b3

#7a1fb3

#b37a1f

#58b31f

Square

#1f58b3

#b31fa2

#b37a1f

#1fb330

Shades

Color #1f58b3 mixed toward black.

#1a4995

#153b77

#0f2c5a

#0a1d3c

#050f1e

Tints

Color #1f58b3 mixed toward white.

#2a6eda

#558be2

#7fa8e9

#aac5f0

#d4e2f8

Tones

Color #1f58b3 mixed toward gray.

#2b5ba7

#385e9a

#44618e

#506382

#5d6675

Accessibility

Aa White text on this color

6.76:1

Aa Black text on this color

3.11:1

White text reads better on this background (6.76:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#3f40a3 · ΔE 10.2

Deuteranopia

#3c379f · ΔE 12.6

Tritanopia

#249491 · ΔE 34.5

Achromatopsia

#5b5b5b · ΔE 24.8

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

Code

CSS

background-color: #1f58b3;

Tailwind (arbitrary value)

bg-[#1f58b3]

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

#1f58b3 (#1f58b3) is rgb(31, 88, 179) in RGB.

No, #1f58b3 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 #1f58b3, or check how it holds up for accessibility.

Generate a palette → Check contrast