#1f2b48

Color #1f2b48

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 17.64 Nearest Tailwind class slate-800 #1d293d · ΔE 4

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Conversions

HEX

#1f2b48

RGB

rgb(31, 43, 72)

HSL

hsl(222.4, 39.8%, 20.2%)

HSV / HSB

hsv(222.4, 56.9%, 28.2%)

CMYK

cmyk(56.9%, 40.3%, 0%, 71.8%)

LAB

lab(17.86, 4.68, -19.68)

LCH

lch(17.86, 20.23, 283.38)

OKLCH

oklch(29.3%, 0.0556, 265.98)

HWB

hwb(222.4, 12.2%, 71.8%)

Harmony colors

Complementary

#483c1f

Analogous

#1f4048

#1f2b48

#271f48

Triadic

#1f2b48

#481f2b

#2b481f

Split-complementary

#1f2b48

#48271f

#40481f

Tetradic

#1f2b48

#3c1f48

#483c1f

#2b481f

Square

#1f2b48

#481f40

#483c1f

#1f4827

Shades

Color #1f2b48 mixed toward black.

#1a243c

#151d30

#101624

#0a0e18

#05070c

Tints

Color #1f2b48 mixed toward white.

#334777

#4864a7

#7189c2

#a0b0d6

#d0d8eb

Tones

Color #1f2b48 mixed toward gray.

#222c45

#262e41

#292f3e

#2d313a

#303237

Accessibility

Aa White text on this color

14.02:1

Aa Black text on this color

1.5:1

White text reads better on this background (14.02:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#252542 · ΔE 4.7

Deuteranopia

#242341 · ΔE 5.3

Tritanopia

#203d3c · ΔE 19.7

Achromatopsia

#2c2c2c · ΔE 14.2

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

Code

CSS

background-color: #1f2b48;

Tailwind (arbitrary value)

bg-[#1f2b48]

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

#1f2b48 (#1f2b48) is rgb(31, 43, 72) in RGB.

No, #1f2b48 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #1f2b48, or check how it holds up for accessibility.

Generate a palette → Check contrast