#03b3f8

Cerulean

Closest match (93% match)

Color formats

RGB

rgb(3, 179, 248)

Red, Green, Blue components

HSL

hsl(197, 98%, 49%)

Hue, Saturation, Lightness

CMYK

cmyk(99, 28, 0, 3)

Print color encoding

Luminance

0.390

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#03b3f8

#f84803

Analogous (Adjacent)

#03f8c3

#03b3f8

#0338f8

Triadic

#03b3f8

#f803b3

#b3f803

Split complementary

#03b3f8

#f80338

#f8c303

Complete conversion table

HEX

#03B3F8

RGB

rgb(3,179,248)

RGBA

rgba(3,179,248, 1)

HSL

hsl(196.9,97.61%,49.22%)

OKLCH (Modern CSS)

oklch(0.72 0.15 235.3)

CSS Variable

--color: #03b3f8;

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

2.38

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

8.81

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#03b3f8#d1d2f8

ORIG

SIM

Deuteranopia (green)

#03b3f8#5e4cf8

ORIG

SIM

Tritanopia (blue)

#03b3f8#0c5560

ORIG

SIM

Monochrome (color blind)

#03b3f8#a8a8a8

Mixing guide

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

MIXING PALETTE

81%

18%

RYB PIGMENTS

Ultramarine blue

Pigment

81%

Cadmium yellow

Pigment

18%

Ivory black

Pigment

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)

39.0%

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.

Hawaii Morning

#00BBFF

Megaman

#3CBCFC

Glitter Lake

#44BBFF

Capri

#00BFFF

Vermilion

#F84803

Blue Ribbon

#0338F8

Bright Turquoise

#03F8C3

Shocking Pink

#F803B3

Lime

#B3F803

Torch Red

#F80338

Anakiwa

#75EFFF

Lochmara

#007ABB