#308ea3

Astral

Closest match (91% match)

Color formats

RGB

rgb(48, 142, 163)

Red, Green, Blue components

HSL

hsl(191, 55%, 41%)

Hue, Saturation, Lightness

CMYK

cmyk(71, 13, 0, 36)

Print color encoding

Luminance

0.226

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#308ea3

#a34530

Analogous (Adjacent)

#30a37f

#308ea3

#3054a3

Triadic

#308ea3

#a3308e

#8ea330

Split complementary

#308ea3

#a33054

#a37e30

Complete conversion table

HEX

#308EA3

RGB

rgb(48,142,163)

RGBA

rgba(48,142,163, 1)

HSL

hsl(190.96,54.5%,41.37%)

OKLCH (Modern CSS)

oklch(0.60 0.09 215.7)

CSS Variable

--color: #308ea3;

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

3.80

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

5.52

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#308ea3#9797a3

ORIG

SIM

Deuteranopia (green)

#308ea3#5a53a3

ORIG

SIM

Tritanopia (blue)

#308ea3#355762

ORIG

SIM

Monochrome (color blind)

#308ea3#838383

Mixing guide

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

MIXING PALETTE

58%

28%

15%

RYB PIGMENTS

Ultramarine blue

Pigment

58%

Ivory black

Pigment

28%

Cadmium yellow

Pigment

15%

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)

22.6%

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.

Waikiki

#218BA0

Blue Moon

#3992A8

Munsell Blue

#0093AF

Mediterranean Sea

#1E8CAB

Medium Carmine

#A34530

Sapphire

#3054A3

Jungle Green

#30A37F

Royal Heath

#A3308E

Sushi

#8EA330

Night Shadz

#A33054

Viking

#72C8DE

Blue Stone

#00586B