#2b4e66

Color #2b4e66

A moderately saturated dark blue.

Closest named color Charcoal #36454f · ΔE 10.5 Nearest Tailwind class sky-900 #024a70 · ΔE 4.5

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Conversions

HEX

#2b4e66

RGB

rgb(43, 78, 102)

HSL

hsl(204.4, 40.7%, 28.4%)

HSV / HSB

hsv(204.4, 57.8%, 40%)

CMYK

cmyk(57.8%, 23.5%, 0%, 60%)

LAB

lab(31.63, -4.9, -17.81)

LCH

lch(31.63, 18.47, 254.62)

OKLCH

oklch(40.8%, 0.0574, 240.13)

HWB

hwb(204.4, 16.9%, 60%)

Harmony colors

Complementary

#66432b

Analogous

#2b6660

#2b4e66

#2b3066

Triadic

#2b4e66

#662b4e

#4e662b

Split-complementary

#2b4e66

#662b30

#66602b

Tetradic

#2b4e66

#432b66

#66432b

#4e662b

Square

#2b4e66

#602b66

#66432b

#30662b

Shades

Color #2b4e66 mixed toward black.

#244155

#1d3444

#152733

#0e1a22

#070d11

Tints

Color #2b4e66 mixed toward white.

#3d6f91

#548fb7

#7fabc9

#a9c7db

#d4e3ed

Tones

Color #2b4e66 mixed toward gray.

#304d61

#354c5c

#3a4b57

#3f4a52

#44494d

Accessibility

Aa White text on this color

8.81:1

Aa Black text on this color

2.38:1

White text reads better on this background (8.81:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3d3d61 · ΔE 14.5

Deuteranopia

#3b3860 · ΔE 15.5

Tritanopia

#2d5d5c · ΔE 14.6

Achromatopsia

#4a4a4a · ΔE 13.4

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

Code

CSS

background-color: #2b4e66;

Tailwind (arbitrary value)

bg-[#2b4e66]

Related colors

Charcoal #36454f

Light Sky Blue #87cefa

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#2b4e66 (#2b4e66) is rgb(43, 78, 102) in RGB.

No, #2b4e66 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 #2b4e66, or check how it holds up for accessibility.

Generate a palette → Check contrast