#42377d

Color #42377d

A muted dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 5.26 Nearest Tailwind class indigo-900 #312c85 · ΔE 4.7

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

Conversions

HEX

#42377d

RGB

rgb(66, 55, 125)

HSL

hsl(249.4, 38.9%, 35.3%)

HSV / HSB

hsv(249.4, 56%, 49%)

CMYK

cmyk(47.2%, 56%, 0%, 51%)

LAB

lab(27.77, 24.02, -38.32)

LCH

lch(27.77, 45.23, 302.08)

OKLCH

oklch(38.7%, 0.1141, 287.02)

HWB

hwb(249.4, 21.6%, 51%)

Harmony colors

Complementary

#727d37

Analogous

#374f7d

#42377d

#65377d

Triadic

#42377d

#7d4237

#377d42

Split-complementary

#42377d

#7d6537

#4f7d37

Tetradic

#42377d

#7d3772

#727d37

#377d42

Square

#42377d

#7d374f

#727d37

#377d65

Shades

Color #42377d mixed toward black.

#372e68

#2c2553

#211b3f

#16122a

#0b0915

Tints

Color #42377d mixed toward white.

#5648a3

#7466bc

#968ccd

#b9b3dd

#dcd9ee

Tones

Color #42377d mixed toward gray.

#463d77

#4a4371

#4e496c

#524e66

#565460

Accessibility

Aa White text on this color

10.12:1

Aa Black text on this color

2.07:1

White text reads better on this background (10.12:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3e3d71 · ΔE 4.1

Deuteranopia

#3e3f6e · ΔE 5.4

Tritanopia

#416663 · ΔE 28.4

Achromatopsia

#424242 · ΔE 23.1

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

Code

CSS

background-color: #42377d;

Tailwind (arbitrary value)

bg-[#42377d]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#42377d (#42377d) is rgb(66, 55, 125) in RGB.

No, #42377d 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 #42377d, or check how it holds up for accessibility.

Generate a palette → Check contrast