#404a57

Color #404a57

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 3.87 Nearest Tailwind class gray-700 #364153 · ΔE 3.9

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Conversions

HEX

#404a57

RGB

rgb(64, 74, 87)

HSL

hsl(213.9, 15.2%, 29.6%)

HSV / HSB

hsv(213.9, 26.4%, 34.1%)

CMYK

cmyk(26.4%, 14.9%, 0%, 65.9%)

LAB

lab(31.06, -0.66, -9.02)

LCH

lch(31.06, 9.04, 265.82)

OKLCH

oklch(40.5%, 0.0255, 254.98)

HWB

hwb(213.9, 25.1%, 65.9%)

Harmony colors

Complementary

#574d40

Analogous

#405557

#404a57

#414057

Triadic

#404a57

#57404a

#4a5740

Split-complementary

#404a57

#574140

#555740

Tetradic

#404a57

#4d4057

#574d40

#4a5740

Square

#404a57

#574055

#574d40

#405741

Shades

Color #404a57 mixed toward black.

#353e48

#2b313a

#20252b

#15191d

#0b0c0e

Tints

Color #404a57 mixed toward white.

#596779

#75859a

#98a3b3

#bac2cc

#dde0e6

Tones

Color #404a57 mixed toward gray.

#424a55

#444a53

#464b51

#484b4f

#4a4b4d

Accessibility

Aa White text on this color

8.99:1

Aa Black text on this color

2.34:1

White text reads better on this background (8.99:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#454554 · ΔE 5.9

Deuteranopia

#444353 · ΔE 6.8

Tritanopia

#415251 · ΔE 9.9

Achromatopsia

#494949 · ΔE 7.5

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

Code

CSS

background-color: #404a57;

Tailwind (arbitrary value)

bg-[#404a57]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Cornflower Blue #6495ed

Alice Blue #f0f8ff

Frequently asked questions

#404a57 (#404a57) is rgb(64, 74, 87) in RGB.

No, #404a57 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 #404a57, or check how it holds up for accessibility.

Generate a palette → Check contrast