#648aaa

Color #648aaa

A muted medium blue.

Closest named color Light Slate Gray #778899 · ΔE 10.24 Nearest Tailwind class sky-600 #0084d1 · ΔE 8.4

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Conversions

HEX

#648aaa

RGB

rgb(100, 138, 170)

HSL

hsl(207.4, 29.2%, 52.9%)

HSV / HSB

hsv(207.4, 41.2%, 66.7%)

CMYK

cmyk(41.2%, 18.8%, 0%, 33.3%)

LAB

lab(55.87, -4.69, -21.06)

LCH

lch(55.87, 21.58, 257.45)

OKLCH

oklch(61.8%, 0.0646, 244.51)

HWB

hwb(207.4, 39.2%, 33.3%)

Harmony colors

Complementary

#aa8464

Analogous

#64aaa7

#648aaa

#6467aa

Triadic

#648aaa

#aa648a

#8aaa64

Split-complementary

#648aaa

#aa6467

#aaa764

Tetradic

#648aaa

#8464aa

#aa8464

#8aaa64

Square

#648aaa

#a764aa

#aa8464

#67aa64

Shades

Color #648aaa mixed toward black.

#507391

#405c74

#304557

#202e3a

#10171d

Tints

Color #648aaa mixed toward white.

#7e9db8

#98b1c6

#b1c4d4

#cbd8e3

#e5ebf1

Tones

Color #648aaa mixed toward gray.

#6a89a4

#70899e

#758898

#7b8893

#81878d

Accessibility

Aa White text on this color

3.65:1

Aa Black text on this color

5.76:1

Black text reads better on this background (5.76:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#7677a3 · ΔE 13.5

Deuteranopia

#7471a1 · ΔE 15

Tritanopia

#669d9c · ΔE 16.3

Achromatopsia

#868686 · ΔE 14.8

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

Code

CSS

background-color: #648aaa;

Tailwind (arbitrary value)

bg-[#648aaa]

Related colors

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Slate Gray #708090

Charcoal #36454f

Frequently asked questions

#648aaa (#648aaa) is rgb(100, 138, 170) in RGB.

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

Generate a palette → Check contrast