#6661b7

Color #6661b7

A muted medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 14.92 Nearest Tailwind class slate-500 #62748e · ΔE 9.8

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

Conversions

HEX

#6661b7

RGB

rgb(102, 97, 183)

HSL

hsl(243.5, 37.4%, 54.9%)

HSV / HSB

hsv(243.5, 47%, 71.8%)

CMYK

cmyk(44.3%, 47%, 0%, 28.2%)

LAB

lab(45.35, 24.28, -45.04)

LCH

lch(45.35, 51.17, 298.33)

OKLCH

oklch(53.8%, 0.1313, 283.7)

HWB

hwb(243.5, 38%, 28.2%)

Harmony colors

Complementary

#b2b761

Analogous

#6187b7

#6661b7

#9161b7

Triadic

#6661b7

#b76661

#61b766

Split-complementary

#6661b7

#b79161

#87b761

Tetradic

#6661b7

#b761b2

#b2b761

#61b766

Square

#6661b7

#b76187

#b2b761

#61b791

Shades

Color #6661b7 mixed toward black.

#4e49a0

#3e3a80

#2f2c60

#1f1d40

#100f20

Tints

Color #6661b7 mixed toward white.

#807bc3

#9996cf

#b3b0db

#cccae7

#e6e5f3

Tones

Color #6661b7 mixed toward gray.

#6c68b0

#736fa9

#7976a2

#7f7e9a

#868593

Accessibility

Aa White text on this color

5.3:1

Aa Black text on this color

3.96:1

White text reads better on this background (5.3:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6464a7 · ΔE 3.3

Deuteranopia

#6465a3 · ΔE 4.2

Tritanopia

#669996 · ΔE 31.1

Achromatopsia

#6b6b6b · ΔE 24.1

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

Code

CSS

background-color: #6661b7;

Tailwind (arbitrary value)

bg-[#6661b7]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#6661b7 (#6661b7) is rgb(102, 97, 183) in RGB.

No, #6661b7 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.

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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 #6661b7, or check how it holds up for accessibility.

Generate a palette → Check contrast