#1f3e88

Color #1f3e88

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 10.21 Nearest Tailwind class blue-900 #1c398e · ΔE 2.2

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

Conversions

HEX

#1f3e88

RGB

rgb(31, 62, 136)

HSL

hsl(222.3, 62.9%, 32.7%)

HSV / HSB

hsv(222.3, 77.2%, 53.3%)

CMYK

cmyk(77.2%, 54.4%, 0%, 46.7%)

LAB

lab(28.15, 16.55, -44.69)

LCH

lch(28.15, 47.66, 290.32)

OKLCH

oklch(38.7%, 0.1294, 264.1)

HWB

hwb(222.3, 12.2%, 46.7%)

Harmony colors

Complementary

#88691f

Analogous

#1f7288

#1f3e88

#341f88

Triadic

#1f3e88

#881f3e

#3e881f

Split-complementary

#1f3e88

#88341f

#72881f

Tetradic

#1f3e88

#691f88

#88691f

#3e881f

Square

#1f3e88

#881f72

#88691f

#1f8834

Shades

Color #1f3e88 mixed toward black.

#1a3471

#15295b

#0f1f44

#0a152d

#050a17

Tints

Color #1f3e88 mixed toward white.

#2a53b6

#456fd5

#7393df

#a2b7ea

#d0dbf4

Tones

Color #1f3e88 mixed toward gray.

#28417f

#304576

#39496e

#424c65

#4b505c

Accessibility

Aa White text on this color

9.99:1

Aa Black text on this color

2.1:1

White text reads better on this background (9.99:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2f2f7b · ΔE 6.5

Deuteranopia

#2d2b78 · ΔE 7.5

Tritanopia

#216f6d · ΔE 30.4

Achromatopsia

#424242 · ΔE 23.2

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

Code

CSS

background-color: #1f3e88;

Tailwind (arbitrary value)

bg-[#1f3e88]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#1f3e88 (#1f3e88) is rgb(31, 62, 136) in RGB.

No, #1f3e88 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 #1f3e88, or check how it holds up for accessibility.

Generate a palette → Check contrast