#1f478a

Color #1f478a

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 14.92 Nearest Tailwind class blue-900 #1c398e · ΔE 5.2

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

Conversions

HEX

#1f478a

RGB

rgb(31, 71, 138)

HSL

hsl(217.6, 63.3%, 33.1%)

HSV / HSB

hsv(217.6, 77.5%, 54.1%)

CMYK

cmyk(77.5%, 48.6%, 0%, 45.9%)

LAB

lab(30.95, 11.15, -41.4)

LCH

lch(30.95, 42.88, 285.07)

OKLCH

oklch(40.8%, 0.1206, 260.12)

HWB

hwb(217.6, 12.2%, 45.9%)

Harmony colors

Complementary

#8a621f

Analogous

#1f7c8a

#1f478a

#2d1f8a

Triadic

#1f478a

#8a1f47

#478a1f

Split-complementary

#1f478a

#8a2d1f

#7c8a1f

Tetradic

#1f478a

#621f8a

#8a621f

#478a1f

Square

#1f478a

#8a1f7c

#8a621f

#1f8a2d

Shades

Color #1f478a mixed toward black.

#1a3b73

#152f5c

#0f2345

#0a182e

#050c17

Tints

Color #1f478a mixed toward white.

#295fb8

#457bd5

#749ce0

#a2bdea

#d1def5

Tones

Color #1f478a mixed toward gray.

#284981

#314b78

#3a4e6f

#435066

#4c525d

Accessibility

Aa White text on this color

9.03:1

Aa Black text on this color

2.33:1

White text reads better on this background (9.03:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#35357e · ΔE 8.6

Deuteranopia

#322f7b · ΔE 10

Tritanopia

#227370 · ΔE 29

Achromatopsia

#494949 · ΔE 22

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

Code

CSS

background-color: #1f478a;

Tailwind (arbitrary value)

bg-[#1f478a]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#1f478a (#1f478a) is rgb(31, 71, 138) in RGB.

No, #1f478a 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 #1f478a, or check how it holds up for accessibility.

Generate a palette → Check contrast