#1f4b9d

Color #1f4b9d

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 12.41 Nearest Tailwind class blue-900 #1c398e · ΔE 6.1

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Conversions

HEX

#1f4b9d

RGB

rgb(31, 75, 157)

HSL

hsl(219, 67%, 36.9%)

HSV / HSB

hsv(219, 80.3%, 61.6%)

CMYK

cmyk(80.3%, 52.2%, 0%, 38.4%)

LAB

lab(33.47, 16.04, -48.92)

LCH

lch(33.47, 51.48, 288.15)

OKLCH

oklch(43.2%, 0.1425, 261.44)

HWB

hwb(219, 12.2%, 38.4%)

Harmony colors

Complementary

#9d711f

Analogous

#1f8a9d

#1f4b9d

#321f9d

Triadic

#1f4b9d

#9d1f4b

#4b9d1f

Split-complementary

#1f4b9d

#9d321f

#8a9d1f

Tetradic

#1f4b9d

#711f9d

#9d711f

#4b9d1f

Square

#1f4b9d

#9d1f8a

#9d711f

#1f9d32

Shades

Color #1f4b9d mixed toward black.

#1a3f83

#153269

#10264f

#0a1934

#050d1a

Tints

Color #1f4b9d mixed toward white.

#2861ca

#4c7edc

#799ee4

#a5bfed

#d2dff6

Tones

Color #1f4b9d mixed toward gray.

#2a4e93

#345188

#3f557e

#495873

#545b69

Accessibility

Aa White text on this color

8.23:1

Aa Black text on this color

2.55:1

White text reads better on this background (8.23:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#37378f · ΔE 8.6

Deuteranopia

#34318b · ΔE 10.1

Tritanopia

#23827f · ΔE 32.6

Achromatopsia

#4f4f4f · ΔE 24

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

Code

CSS

background-color: #1f4b9d;

Tailwind (arbitrary value)

bg-[#1f4b9d]

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

#1f4b9d (#1f4b9d) is rgb(31, 75, 157) in RGB.

No, #1f4b9d 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 #1f4b9d, or check how it holds up for accessibility.

Generate a palette → Check contrast