#403589

Color #403589

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 5.23 Nearest Tailwind class indigo-900 #312c85 · ΔE 3.1

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

Conversions

HEX

#403589

RGB

rgb(64, 53, 137)

HSL

hsl(247.9, 44.2%, 37.3%)

HSV / HSB

hsv(247.9, 61.3%, 53.7%)

CMYK

cmyk(53.3%, 61.3%, 0%, 46.3%)

LAB

lab(27.96, 28.74, -45.52)

LCH

lch(27.96, 53.83, 302.27)

OKLCH

oklch(39.1%, 0.1345, 284.24)

HWB

hwb(247.9, 20.8%, 46.3%)

Harmony colors

Complementary

#7e8935

Analogous

#355489

#403589

#6a3589

Triadic

#403589

#894035

#358940

Split-complementary

#403589

#896a35

#548935

Tetradic

#403589

#89357e

#7e8935

#358940

Square

#403589

#893554

#7e8935

#35896a

Shades

Color #403589 mixed toward black.

#352c72

#2b235b

#201b45

#15122e

#0b0917

Tints

Color #403589 mixed toward white.

#5244b0

#7265c4

#958cd2

#b8b2e1

#dcd9f0

Tones

Color #403589 mixed toward gray.

#453c82

#4a437b

#504a74

#55516d

#5a5866

Accessibility

Aa White text on this color

10.06:1

Aa Black text on this color

2.09:1

White text reads better on this background (10.06:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3c3b7b · ΔE 3.9

Deuteranopia

#3c3d77 · ΔE 5.2

Tritanopia

#406e6b · ΔE 30.8

Achromatopsia

#424242 · ΔE 24.7

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

Code

CSS

background-color: #403589;

Tailwind (arbitrary value)

bg-[#403589]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#403589 (#403589) is rgb(64, 53, 137) in RGB.

No, #403589 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #403589, or check how it holds up for accessibility.

Generate a palette → Check contrast