#158bb3

Eastern Blue

Closest match (92% match)

Color formats

RGB

rgb(21, 139, 179)

Red, Green, Blue components

HSL

hsl(195, 79%, 39%)

Hue, Saturation, Lightness

CMYK

cmyk(88, 22, 0, 30)

Print color encoding

Luminance

0.219

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#158bb3

#b33d15

Analogous (Adjacent)

#15b38c

#158bb3

#153cb3

Triadic

#158bb3

#b3158b

#8bb315

Split complementary

#158bb3

#b3153c

#b38c15

Complete conversion table

HEX

#158BB3

RGB

rgb(21,139,179)

RGBA

rgba(21,139,179, 1)

HSL

hsl(195.19,79%,39.22%)

OKLCH (Modern CSS)

oklch(0.60 0.11 228.1)

CSS Variable

--color: #158bb3;

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

3.91

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

5.38

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#158bb3#9d9db3

ORIG

SIM

Deuteranopia (green)

#158bb3#4f44b3

ORIG

SIM

Tritanopia (blue)

#158bb3#1b4a54

ORIG

SIM

Monochrome (color blind)

#158bb3#818181

Mixing guide

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

MIXING PALETTE

60%

26%

14%

RYB PIGMENTS

Ultramarine blue

Pigment

60%

Ivory black

Pigment

26%

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

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)

21.9%

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.

Corfu Waters

#008AAD

Swimmer

#0A91BF

Mediterranean Sea

#1E8CAB

Mermaid Dreams

#0088BB

Fiery Orange

#B33D15

Persian Blue

#153CB3

Mountain Meadow

#15B38C

Red Violet

#B3158B

Lima

#8BB315

Cardinal

#B3153C

Malibu

#67C5F0

Orient

#00557A