#2b3783

Color #2b3783

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 6.92 Nearest Tailwind class blue-900 #1c398e · ΔE 2.6

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Conversions

HEX

#2b3783

RGB

rgb(43, 55, 131)

HSL

hsl(231.8, 50.6%, 34.1%)

HSV / HSB

hsv(231.8, 67.2%, 51.4%)

CMYK

cmyk(67.2%, 58%, 0%, 48.6%)

LAB

lab(26.4, 21.26, -44.38)

LCH

lch(26.4, 49.21, 295.6)

OKLCH

oklch(37.4%, 0.1277, 271.97)

HWB

hwb(231.8, 16.9%, 48.6%)

Harmony colors

Complementary

#83772b

Analogous

#2b6383

#2b3783

#4b2b83

Triadic

#2b3783

#832b37

#37832b

Split-complementary

#2b3783

#834b2b

#63832b

Tetradic

#2b3783

#772b83

#83772b

#37832b

Square

#2b3783

#832b63

#83772b

#2b834b

Shades

Color #2b3783 mixed toward black.

#242e6d

#1d2557

#151b41

#0e122c

#070916

Tints

Color #2b3783 mixed toward white.

#3949ad

#5666c8

#808cd5

#abb2e3

#d5d9f1

Tones

Color #2b3783 mixed toward gray.

#323c7c

#3a4274

#41476d

#484c66

#50525e

Accessibility

Aa White text on this color

10.62:1

Aa Black text on this color

1.98:1

White text reads better on this background (10.62:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#313176 · ΔE 3.2

Deuteranopia

#302f73 · ΔE 3.8

Tritanopia

#2c6a68 · ΔE 30.4

Achromatopsia

#3e3e3e · ΔE 23.7

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

Code

CSS

background-color: #2b3783;

Tailwind (arbitrary value)

bg-[#2b3783]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#2b3783 (#2b3783) is rgb(43, 55, 131) in RGB.

No, #2b3783 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 #2b3783, or check how it holds up for accessibility.

Generate a palette → Check contrast