#403e5a

Color #403e5a

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 14.09 Nearest Tailwind class mauve-700 #463947 · ΔE 7.4

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#403e5a

RGB

rgb(64, 62, 90)

HSL

hsl(244.3, 18.4%, 29.8%)

HSV / HSB

hsv(244.3, 31.1%, 35.3%)

CMYK

cmyk(28.9%, 31.1%, 0%, 64.7%)

LAB

lab(27.5, 8.01, -16.39)

LCH

lch(27.5, 18.24, 296.05)

OKLCH

oklch(37.8%, 0.0474, 287.17)

HWB

hwb(244.3, 24.3%, 64.7%)

Harmony colors

Complementary

#585a3e

Analogous

#3e4a5a

#403e5a

#4e3e5a

Triadic

#403e5a

#5a403e

#3e5a40

Split-complementary

#403e5a

#5a4e3e

#4a5a3e

Tetradic

#403e5a

#5a3e58

#585a3e

#3e5a40

Square

#403e5a

#5a3e4a

#585a3e

#3e5a4e

Shades

Color #403e5a mixed toward black.

#35344b

#2b293c

#201f2d

#15151e

#0b0a0f

Tints

Color #403e5a mixed toward white.

#59567d

#75729e

#9795b6

#bab8ce

#dcdce7

Tones

Color #403e5a mixed toward gray.

#424058

#444355

#464553

#484751

#4a4a4e

Accessibility

Aa White text on this color

10.22:1

Aa Black text on this color

2.05:1

White text reads better on this background (10.22:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3f3f54 · ΔE 3

Deuteranopia

#3f3f53 · ΔE 3.5

Tritanopia

#404f4e · ΔE 18.8

Achromatopsia

#414141 · ΔE 13.9

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

Code

CSS

background-color: #403e5a;

Tailwind (arbitrary value)

bg-[#403e5a]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#403e5a (#403e5a) is rgb(64, 62, 90) in RGB.

No, #403e5a 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 #403e5a, or check how it holds up for accessibility.

Generate a palette → Check contrast