#403c66

Color #403c66

A muted dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 22.51 Nearest Tailwind class blue-950 #162456 · ΔE 9.4

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Conversions

HEX

#403c66

RGB

rgb(64, 60, 102)

HSL

hsl(245.7, 25.9%, 31.8%)

HSV / HSB

hsv(245.7, 41.2%, 40%)

CMYK

cmyk(37.3%, 41.2%, 0%, 60%)

LAB

lab(27.52, 12.9, -24.11)

LCH

lch(27.52, 27.34, 298.15)

OKLCH

oklch(38%, 0.0706, 286.87)

HWB

hwb(245.7, 23.5%, 60%)

Harmony colors

Complementary

#62663c

Analogous

#3c4d66

#403c66

#553c66

Triadic

#403c66

#66403c

#3c6640

Split-complementary

#403c66

#66553c

#4d663c

Tetradic

#403c66

#663c62

#62663c

#3c6640

Square

#403c66

#663c4d

#62663c

#3c6655

Shades

Color #403c66 mixed toward black.

#353255

#2b2844

#201e33

#151422

#0b0a11

Tints

Color #403c66 mixed toward white.

#57528b

#736da9

#9692bf

#b9b6d4

#dcdbea

Tones

Color #403c66 mixed toward gray.

#434063

#46435f

#49475c

#4b4a58

#4e4e55

Accessibility

Aa White text on this color

10.21:1

Aa Black text on this color

2.06:1

White text reads better on this background (10.21:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3e3e5e · ΔE 3.3

Deuteranopia

#3f3f5c · ΔE 4.3

Tritanopia

#405755 · ΔE 23.9

Achromatopsia

#414141 · ΔE 18.1

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

Code

CSS

background-color: #403c66;

Tailwind (arbitrary value)

bg-[#403c66]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#403c66 (#403c66) is rgb(64, 60, 102) in RGB.

No, #403c66 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 #403c66, or check how it holds up for accessibility.

Generate a palette → Check contrast