#647cb2

Color #647cb2

A muted medium blue.

Closest named color Steel Blue #4682b4 · ΔE 9.92 Nearest Tailwind class slate-500 #62748e · ΔE 7.3

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

Conversions

HEX

#647cb2

RGB

rgb(100, 124, 178)

HSL

hsl(221.5, 33.6%, 54.5%)

HSV / HSB

hsv(221.5, 43.8%, 69.8%)

CMYK

cmyk(43.8%, 30.3%, 0%, 30.2%)

LAB

lab(52.22, 5.8, -31.31)

LCH

lch(52.22, 31.84, 280.49)

OKLCH

oklch(59%, 0.0879, 265.43)

HWB

hwb(221.5, 39.2%, 30.2%)

Harmony colors

Complementary

#b29a64

Analogous

#64a3b2

#647cb2

#7364b2

Triadic

#647cb2

#b2647c

#7cb264

Split-complementary

#647cb2

#b27364

#a3b264

Tetradic

#647cb2

#9a64b2

#b29a64

#7cb264

Square

#647cb2

#b264a3

#b29a64

#64b273

Shades

Color #647cb2 mixed toward black.

#4d659b

#3e517c

#2e3d5d

#1f283e

#0f141f

Tints

Color #647cb2 mixed toward white.

#7e92bf

#98a8cc

#b1bed8

#cbd3e5

#e5e9f2

Tones

Color #647cb2 mixed toward gray.

#6a7fab

#7181a5

#77849e

#7e8698

#848891

Accessibility

Aa White text on this color

4.14:1

Aa Black text on this color

5.07:1

Black text reads better on this background (5.07:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6f6fa7 · ΔE 7.3

Deuteranopia

#6e6ca4 · ΔE 8.3

Tritanopia

#659e9b · ΔE 24.6

Achromatopsia

#7d7d7d · ΔE 18.7

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

Code

CSS

background-color: #647cb2;

Tailwind (arbitrary value)

bg-[#647cb2]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#647cb2 (#647cb2) is rgb(100, 124, 178) in RGB.

No, #647cb2 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 #647cb2, or check how it holds up for accessibility.

Generate a palette → Check contrast