#2178a1

Matisse

Closest match (92% match)

Color formats

RGB

rgb(33, 120, 161)

Red, Green, Blue components

HSL

hsl(199, 66%, 38%)

Hue, Saturation, Lightness

CMYK

cmyk(80, 25, 0, 37)

Print color encoding

Luminance

0.163

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#2178a1

#a14a21

Analogous (Adjacent)

#21a18a

#2178a1

#2138a1

Triadic

#2178a1

#a12178

#78a121

Split complementary

#2178a1

#a12138

#a18a21

Complete conversion table

HEX

#2178A1

RGB

rgb(33,120,161)

RGBA

rgba(33,120,161, 1)

HSL

hsl(199.22,65.98%,38.04%)

OKLCH (Modern CSS)

oklch(0.54 0.10 234.2)

CSS Variable

--color: #2178a1;

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

4.92

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

4.27

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#2178a1#8a8aa1

ORIG

SIM

Deuteranopia (green)

#2178a1#5047a1

ORIG

SIM

Tritanopia (blue)

#2178a1#25474f

ORIG

SIM

Monochrome (color blind)

#2178a1#707070

Mixing guide

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

MIXING PALETTE

56%

32%

12%

RYB PIGMENTS

Ultramarine blue

Pigment

56%

Ivory black

Pigment

32%

Cadmium yellow

Pigment

12%

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

Cyan hue

485–500 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)

16.3%

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.

Jacuzzi

#007CAC

Bleu Ciel

#007BA1

Cry Me a River

#427898

Pristine Seas

#007799

Prairie Sand

#A14A21

Jacksons Purple

#2138A1

Jungle Green

#21A18A

Hibiscus

#A12178

Olive Drab

#78A121

Mexican Red

#A12138

Viking

#67B1DD

Regal Blue

#004469