#648fb5

Color #648fb5

A muted medium blue.

Closest named color Steel Blue #4682b4 · ΔE 9.35 Nearest Tailwind class sky-600 #0084d1 · ΔE 8

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Conversions

HEX

#648fb5

RGB

rgb(100, 143, 181)

HSL

hsl(208.1, 35.4%, 55.1%)

HSV / HSB

hsv(208.1, 44.8%, 71%)

CMYK

cmyk(44.8%, 21%, 0%, 29%)

LAB

lab(57.74, -4.4, -24.47)

LCH

lch(57.74, 24.86, 259.81)

OKLCH

oklch(63.4%, 0.0744, 245.98)

HWB

hwb(208.1, 39.2%, 29%)

Harmony colors

Complementary

#b58a64

Analogous

#64b5b2

#648fb5

#6467b5

Triadic

#648fb5

#b5648f

#8fb564

Split-complementary

#648fb5

#b56467

#b5b264

Tetradic

#648fb5

#8a64b5

#b58a64

#8fb564

Square

#648fb5

#b264b5

#b58a64

#67b564

Shades

Color #648fb5 mixed toward black.

#4c789f

#3d607f

#2d485f

#1e303f

#0f1820

Tints

Color #648fb5 mixed toward white.

#7ea2c1

#98b4ce

#b1c7da

#cbdae6

#e5ecf3

Tones

Color #648fb5 mixed toward gray.

#6b8fae

#718ea8

#788ea1

#7f8d9a

#868d93

Accessibility

Aa White text on this color

3.42:1

Aa Black text on this color

6.14:1

Black text reads better on this background (6.14:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#7979ad · ΔE 13.6

Deuteranopia

#7673ab · ΔE 14.8

Tritanopia

#67a6a4 · ΔE 18.2

Achromatopsia

#8b8b8b · ΔE 16.1

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

Code

CSS

background-color: #648fb5;

Tailwind (arbitrary value)

bg-[#648fb5]

Related colors

Alice Blue #f0f8ff

Steel Blue #4682b4

Dodger Blue #1e90ff

Light Slate Gray #778899

Slate Gray #708090

Charcoal #36454f

Frequently asked questions

#648fb5 (#648fb5) is rgb(100, 143, 181) in RGB.

No, #648fb5 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 #648fb5, or check how it holds up for accessibility.

Generate a palette → Check contrast