#404e51

Color #404e51

A nearly neutral, gray-leaning dark cyan.

Closest named color Charcoal #36454f · ΔE 5.92 Nearest Tailwind class mist-700 #394447 · ΔE 3.4

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Conversions

HEX

#404e51

RGB

rgb(64, 78, 81)

HSL

hsl(190.6, 11.7%, 28.4%)

HSV / HSB

hsv(190.6, 21%, 31.8%)

CMYK

cmyk(21%, 3.7%, 0%, 68.2%)

LAB

lab(32.11, -4.76, -3.61)

LCH

lch(32.11, 5.97, 217.18)

OKLCH

oklch(41.3%, 0.0184, 212.14)

HWB

hwb(190.6, 25.1%, 68.2%)

Harmony colors

Complementary

#514340

Analogous

#40514b

#404e51

#404551

Triadic

#404e51

#51404e

#4e5140

Split-complementary

#404e51

#514045

#514b40

Tetradic

#404e51

#434051

#514340

#4e5140

Square

#404e51

#4b4051

#514340

#455140

Shades

Color #404e51 mixed toward black.

#354143

#2b3436

#202728

#151a1b

#0b0d0d

Tints

Color #404e51 mixed toward white.

#5b6f73

#778e94

#99abae

#bbc7c9

#dde3e4

Tones

Color #404e51 mixed toward gray.

#414d4f

#434c4e

#444b4d

#464a4b

#47494a

Accessibility

Aa White text on this color

8.65:1

Aa Black text on this color

2.43:1

White text reads better on this background (8.65:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#464750 · ΔE 8.7

Deuteranopia

#464550 · ΔE 10.6

Tritanopia

#415050 · ΔE 2.1

Achromatopsia

#4c4c4c · ΔE 6.8

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

Code

CSS

background-color: #404e51;

Tailwind (arbitrary value)

bg-[#404e51]

Related colors

Powder Blue #b0e0e6

Light Blue #add8e6

Deep Sky Blue #00bfff

Sky Blue #87ceeb

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Frequently asked questions

#404e51 (#404e51) is rgb(64, 78, 81) in RGB.

No, #404e51 is not web-safe. The nearest web-safe colors are among its tones and shades below.

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 #404e51, or check how it holds up for accessibility.

Generate a palette → Check contrast