#665bc4

Color #665bc4

A moderately saturated medium blue.

Closest named color Slate Blue #6a5acd · ΔE 5.86 Nearest Tailwind class indigo-500 #615fff · ΔE 8.1

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Conversions

HEX

#665bc4

RGB

rgb(102, 91, 196)

HSL

hsl(246.3, 47.1%, 56.3%)

HSV / HSB

hsv(246.3, 53.6%, 76.9%)

CMYK

cmyk(48%, 53.6%, 0%, 23.1%)

LAB

lab(44.65, 31.87, -53.71)

LCH

lch(44.65, 62.45, 300.68)

OKLCH

oklch(53.6%, 0.1581, 284.47)

HWB

hwb(246.3, 35.7%, 23.1%)

Harmony colors

Complementary

#b9c45b

Analogous

#5b85c4

#665bc4

#9b5bc4

Triadic

#665bc4

#c4665b

#5bc466

Split-complementary

#665bc4

#c49b5b

#85c45b

Tetradic

#665bc4

#c45bb9

#b9c45b

#5bc466

Square

#665bc4

#c45b85

#b9c45b

#5bc49b

Shades

Color #665bc4 mixed toward black.

#4b3fb0

#3c338d

#2d266a

#1e1946

#0f0d23

Tints

Color #665bc4 mixed toward white.

#8076ce

#9992d8

#b3ade2

#ccc8eb

#e6e4f5

Tones

Color #665bc4 mixed toward gray.

#6d64bb

#746db3

#7b75aa

#827ea1

#898798

Accessibility

Aa White text on this color

5.44:1

Aa Black text on this color

3.86:1

White text reads better on this background (5.44:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6161b2 · ΔE 3.9

Deuteranopia

#6263ad · ΔE 5

Tritanopia

#65a19d · ΔE 34.9

Achromatopsia

#6a6a6a · ΔE 26.1

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

Code

CSS

background-color: #665bc4;

Tailwind (arbitrary value)

bg-[#665bc4]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#665bc4 (#665bc4) is rgb(102, 91, 196) in RGB.

No, #665bc4 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 #665bc4, or check how it holds up for accessibility.

Generate a palette → Check contrast