#1f3370

Color #1f3370

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 14.44 Nearest Tailwind class blue-900 #1c398e · ΔE 4.8

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Conversions

HEX

#1f3370

RGB

rgb(31, 51, 112)

HSL

hsl(225.2, 56.6%, 28%)

HSV / HSB

hsv(225.2, 72.3%, 43.9%)

CMYK

cmyk(72.3%, 54.5%, 0%, 56.1%)

LAB

lab(23.1, 14.65, -37.73)

LCH

lch(23.1, 40.47, 291.22)

OKLCH

oklch(34.2%, 0.1086, 266.88)

HWB

hwb(225.2, 12.2%, 56.1%)

Harmony colors

Complementary

#705c1f

Analogous

#1f5b70

#1f3370

#331f70

Triadic

#1f3370

#701f33

#33701f

Split-complementary

#1f3370

#70331f

#5b701f

Tetradic

#1f3370

#5c1f70

#705c1f

#33701f

Square

#1f3370

#701f5b

#705c1f

#1f7033

Shades

Color #1f3370 mixed toward black.

#1a2a5d

#15224b

#0f1938

#0a1125

#050813

Tints

Color #1f3370 mixed toward white.

#2c49a0

#3f61ca

#6f89d7

#9fb0e4

#cfd8f2

Tones

Color #1f3370 mixed toward gray.

#263669

#2c3a62

#333d5c

#3a4155

#41444e

Accessibility

Aa White text on this color

11.89:1

Aa Black text on this color

1.77:1

White text reads better on this background (11.89:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#292965 · ΔE 4.8

Deuteranopia

#282662 · ΔE 5.6

Tritanopia

#205c59 · ΔE 28.2

Achromatopsia

#373737 · ΔE 21.6

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

Code

CSS

background-color: #1f3370;

Tailwind (arbitrary value)

bg-[#1f3370]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#1f3370 (#1f3370) is rgb(31, 51, 112) in RGB.

No, #1f3370 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 #1f3370, or check how it holds up for accessibility.

Generate a palette → Check contrast