#40407d

Color #40407d

A muted dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 11.23 Nearest Tailwind class blue-900 #1c398e · ΔE 6.7

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

Conversions

HEX

#40407d

RGB

rgb(64, 64, 125)

HSL

hsl(240, 32.3%, 37.1%)

HSV / HSB

hsv(240, 48.8%, 49%)

CMYK

cmyk(48.8%, 48.8%, 0%, 51%)

LAB

lab(30, 17.58, -34.75)

LCH

lch(30, 38.94, 296.83)

OKLCH

oklch(40.3%, 0.1005, 280.9)

HWB

hwb(240, 25.1%, 51%)

Harmony colors

Complementary

#7d7d40

Analogous

#405f7d

#40407d

#5f407d

Triadic

#40407d

#7d4040

#407d40

Split-complementary

#40407d

#7d5f40

#5f7d40

Tetradic

#40407d

#7d407d

#7d7d40

#407d40

Square

#40407d

#7d405f

#7d7d40

#407d5f

Shades

Color #40407d mixed toward black.

#353568

#2b2b53

#20203f

#15152a

#0b0b15

Tints

Color #40407d mixed toward white.

#5252a1

#7272b7

#9595c9

#b8b8db

#dcdced

Tones

Color #40407d mixed toward gray.

#454578

#4a4a73

#4f4f6e

#545469

#5a5a64

Accessibility

Aa White text on this color

9.34:1

Aa Black text on this color

2.25:1

White text reads better on this background (9.34:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#404072 · ΔE 2.5

Deuteranopia

#40406f · ΔE 3.3

Tritanopia

#406866 · ΔE 27

Achromatopsia

#474747 · ΔE 21.5

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

Code

CSS

background-color: #40407d;

Tailwind (arbitrary value)

bg-[#40407d]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#40407d (#40407d) is rgb(64, 64, 125) in RGB.

No, #40407d 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.

Try it → Accessibility

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 #40407d, or check how it holds up for accessibility.

Generate a palette → Check contrast