#1f284e

Color #1f284e

A moderately saturated dark blue.

Closest named color Charcoal #36454f · ΔE 23.61 Nearest Tailwind class blue-950 #162456 · ΔE 3.3

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Conversions

HEX

#1f284e

RGB

rgb(31, 40, 78)

HSL

hsl(228.5, 43.1%, 21.4%)

HSV / HSB

hsv(228.5, 60.3%, 30.6%)

CMYK

cmyk(60.3%, 48.7%, 0%, 69.4%)

LAB

lab(17.27, 9.14, -24.7)

LCH

lch(17.27, 26.34, 290.31)

OKLCH

oklch(29%, 0.0702, 271.39)

HWB

hwb(228.5, 12.2%, 69.4%)

Harmony colors

Complementary

#4e451f

Analogous

#1f404e

#1f284e

#2e1f4e

Triadic

#1f284e

#4e1f28

#284e1f

Split-complementary

#1f284e

#4e2e1f

#404e1f

Tetradic

#1f284e

#451f4e

#4e451f

#284e1f

Square

#1f284e

#4e1f40

#4e451f

#1f4e2e

Shades

Color #1f284e mixed toward black.

#1a2141

#151b34

#101427

#0a0d1a

#05070d

Tints

Color #1f284e mixed toward white.

#32417e

#4559ae

#7080c6

#9faad9

#cfd5ec

Tones

Color #1f284e mixed toward gray.

#232a4a

#272d46

#2b2f42

#2f323e

#33343a

Accessibility

Aa White text on this color

14.27:1

Aa Black text on this color

1.47:1

White text reads better on this background (14.27:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#232347 · ΔE 3.1

Deuteranopia

#232245 · ΔE 3.5

Tritanopia

#20413f · ΔE 23.6

Achromatopsia

#2a2a2a · ΔE 17.2

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

Code

CSS

background-color: #1f284e;

Tailwind (arbitrary value)

bg-[#1f284e]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#1f284e (#1f284e) is rgb(31, 40, 78) in RGB.

No, #1f284e 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 #1f284e, or check how it holds up for accessibility.

Generate a palette → Check contrast