#0066cd

Color #0066cd

A vivid, highly saturated medium blue.

Closest named color Royal Blue #4169e1 · ΔE 12.41 Nearest Tailwind class sky-700 #0069a8 · ΔE 5.8

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

Conversions

HEX

#0066cd

RGB

rgb(0, 102, 205)

HSL

hsl(210.1, 100%, 40.2%)

HSV / HSB

hsv(210.1, 100%, 80.4%)

CMYK

cmyk(100%, 50.2%, 0%, 19.6%)

LAB

lab(44.1, 15.67, -59.98)

LCH

lch(44.1, 61.99, 284.64)

OKLCH

oklch(52.3%, 0.1784, 255.99)

HWB

hwb(210.1, 0%, 19.6%)

Harmony colors

Complementary

#cd6700

Analogous

#00cdcd

#0066cd

#0000cd

Triadic

#0066cd

#cd0066

#66cd00

Split-complementary

#0066cd

#cd0000

#cdcd00

Tetradic

#0066cd

#6700cd

#cd6700

#66cd00

Square

#0066cd

#cd00cd

#cd6700

#00cd00

Shades

Color #0066cd mixed toward black.

#0055ab

#004489

#003367

#002244

#001122

Tints

Color #0066cd mixed toward white.

#0180ff

#3499ff

#67b3ff

#99ccff

#cce6ff

Tones

Color #0066cd mixed toward gray.

#1166bc

#2266ab

#33669a

#446689

#556678

Accessibility

Aa White text on this color

5.55:1

Aa Black text on this color

3.78:1

White text reads better on this background (5.55:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4445bb · ΔE 13.7

Deuteranopia

#3f38b6 · ΔE 16.9

Tritanopia

#13aaa6 · ΔE 36.8

Achromatopsia

#686868 · ΔE 25.9

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

Code

CSS

background-color: #0066cd;

Tailwind (arbitrary value)

bg-[#0066cd]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Steel Blue #4682b4

Light Steel Blue #b0c4de

Frequently asked questions

#0066cd (#0066cd) is rgb(0, 102, 205) in RGB.

No, #0066cd 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.

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 #0066cd, or check how it holds up for accessibility.

Generate a palette → Check contrast