#343c57

Color #343c57

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 12.36 Nearest Tailwind class slate-700 #314158 · ΔE 4.6

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Conversions

HEX

#343c57

RGB

rgb(52, 60, 87)

HSL

hsl(226.3, 25.2%, 27.3%)

HSV / HSB

hsv(226.3, 40.2%, 34.1%)

CMYK

cmyk(40.2%, 31%, 0%, 65.9%)

LAB

lab(25.71, 4.4, -17.29)

LCH

lch(25.71, 17.84, 284.28)

OKLCH

oklch(36.1%, 0.0481, 271.19)

HWB

hwb(226.3, 20.4%, 65.9%)

Harmony colors

Complementary

#574f34

Analogous

#344e57

#343c57

#3e3457

Triadic

#343c57

#57343c

#3c5734

Split-complementary

#343c57

#573e34

#4e5734

Tetradic

#343c57

#4f3457

#574f34

#3c5734

Square

#343c57

#57344e

#574f34

#34573e

Shades

Color #343c57 mixed toward black.

#2b3249

#23283a

#1a1e2c

#11141d

#090a0f

Tints

Color #343c57 mixed toward white.

#4b577e

#6472a3

#8b96ba

#b2b9d1

#d8dce8

Tones

Color #343c57 mixed toward gray.

#373e54

#3a3f51

#3d414e

#40424b

#434449

Accessibility

Aa White text on this color

10.88:1

Aa Black text on this color

1.93:1

White text reads better on this background (10.88:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#383851 · ΔE 3.5

Deuteranopia

#373750 · ΔE 3.6

Tritanopia

#344d4c · ΔE 18.5

Achromatopsia

#3d3d3d · ΔE 13.1

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

Code

CSS

background-color: #343c57;

Tailwind (arbitrary value)

bg-[#343c57]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#343c57 (#343c57) is rgb(52, 60, 87) in RGB.

No, #343c57 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 #343c57, or check how it holds up for accessibility.

Generate a palette → Check contrast