#218cc2

Curious Blue

Closest match (96% match)

Color formats

RGB

rgb(33, 140, 194)

Red, Green, Blue components

HSL

hsl(200, 71%, 45%)

Hue, Saturation, Lightness

CMYK

cmyk(83, 28, 0, 24)

Print color encoding

Luminance

0.230

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#218cc2

#c25721

Analogous (Adjacent)

#21c2a8

#218cc2

#213bc2

Triadic

#218cc2

#c2218c

#8cc221

Split complementary

#218cc2

#c2213c

#c2a721

Complete conversion table

HEX

#218CC2

RGB

rgb(33,140,194)

RGBA

rgba(33,140,194, 1)

HSL

hsl(200.12,70.93%,44.51%)

OKLCH (Modern CSS)

oklch(0.61 0.12 236.9)

CSS Variable

--color: #218cc2;

Preview

Readability and Typography

Headline Test

This text demonstrates the reading experience on this background color.

Headline Test

This text demonstrates the reading experience on this background color.

UI Component Set

This is an example alert bar using the selected color.

SOLIDSOFTOUTLINE

Product Mockup

4582 •••• •••• 9018

CARDHOLDER

JOHN DOE

VALID

12/28

Mobile application

Customer support

Hi! How can we help you today?

I love this new color! 😍

Data visualization

Weekly growth

+1,240

12.5%

WED

2,450

Contrast

Contrast and readability (WCAG)

On white background

3.75

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

5.59

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#218cc2#a4a4c2

ORIG

SIM

Deuteranopia (green)

#218cc2#5c51c2

ORIG

SIM

Tritanopia (blue)

#218cc2#26505a

ORIG

SIM

Monochrome (color blind)

#218cc2#848484

Mixing guide

How to mix this color using physical paints or printing inks.

MIXING PALETTE

71%

15%

14%

RYB PIGMENTS

Ultramarine blue

Pigment

71%

Ivory black

Pigment

15%

Cadmium yellow

Pigment

14%

Unlike light, mixing paints makes colors darker. This simulation mimics the behavior of physical pigments.

Physical properties

Perceptual and light-related properties derived from the digital color.

Spectral relationship

Blue hue

450–495 nm • closest visible-spectrum range

750 nm

380 nm

Visual temperature

Cool

A perceptual warm–cool classification. Kelvin does not apply to an arbitrary interface color.

Cool

Neutral

Warm

Luminance (brightness)

23.0%

Dark • relative luminance

50%

100%

An RGB color is produced by combined screen light, so this range is a visual comparison rather than an exact physical wavelength.

Gradient gallery

Generate premium CSS backgrounds and textures from your color.

Similar & Related Colors

Mathematically computed harmonies, shades, and similar tones for this color.

Forget-Me-Not

#0087BD

Mermaid Dreams

#0088BB

Way Beyond the Blue

#1188CC

Swimmer

#0A91BF

Piper

#C25721

Persian Blue

#213BC2

Java

#21C2A7

Red Violet

#C2218C

Atlantis

#8CC221

Cardinal

#C2213C

Malibu

#6FC6FF

Orient

#005688