#1f31b0

Color #1f31b0

A vivid, highly saturated medium blue.

Closest named color Dark Blue #00008b · ΔE 16.92 Nearest Tailwind class indigo-800 #372aac · ΔE 3.1

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Conversions

HEX

#1f31b0

RGB

rgb(31, 49, 176)

HSL

hsl(232.6, 70%, 40.6%)

HSV / HSB

hsv(232.6, 82.4%, 69%)

CMYK

cmyk(82.4%, 72.2%, 0%, 31%)

LAB

lab(28.44, 40.48, -68.57)

LCH

lch(28.44, 79.63, 300.56)

OKLCH

oklch(40%, 0.1988, 268.18)

HWB

hwb(232.6, 12.2%, 31%)

Harmony colors

Complementary

#b09e1f

Analogous

#1f79b0

#1f31b0

#561fb0

Triadic

#1f31b0

#b01f31

#31b01f

Split-complementary

#1f31b0

#b0561f

#79b01f

Tetradic

#1f31b0

#9e1fb0

#b09e1f

#31b01f

Square

#1f31b0

#b01f79

#b09e1f

#1fb056

Shades

Color #1f31b0 mixed toward black.

#1a2993

#152175

#101858

#0a103b

#05081d

Tints

Color #1f31b0 mixed toward white.

#283ed9

#5365e1

#7e8be8

#a9b2f0

#d4d8f7

Tones

Color #1f31b0 mixed toward gray.

#2b3aa4

#374398

#434c8c

#4f5580

#5b5e74

Accessibility

Aa White text on this color

9.88:1

Aa Black text on this color

2.12:1

White text reads better on this background (9.88:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#28289d · ΔE 3.5

Deuteranopia

#272598 · ΔE 4.4

Tritanopia

#208b87 · ΔE 41.1

Achromatopsia

#434343 · ΔE 28.5

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

Code

CSS

background-color: #1f31b0;

Tailwind (arbitrary value)

bg-[#1f31b0]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#1f31b0 (#1f31b0) is rgb(31, 49, 176) in RGB.

No, #1f31b0 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 #1f31b0, or check how it holds up for accessibility.

Generate a palette → Check contrast