#2d6bb9

Cerulean Blue

Closest match (91% match)

Color formats

RGB

rgb(45, 107, 185)

Red, Green, Blue components

HSL

hsl(213, 61%, 45%)

Hue, Saturation, Lightness

CMYK

cmyk(76, 42, 0, 27)

Print color encoding

Luminance

0.146

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#2d6bb9

#b97b2d

Analogous (Adjacent)

#2db1b9

#2d6bb9

#352db9

Triadic

#2d6bb9

#b92d6b

#6bb92d

Split complementary

#2d6bb9

#b9352d

#b1b92d

Complete conversion table

HEX

#2D6BB9

RGB

rgb(45,107,185)

RGBA

rgba(45,107,185, 1)

HSL

hsl(213.43,60.87%,45.1%)

OKLCH (Modern CSS)

oklch(0.53 0.14 255.8)

CSS Variable

--color: #2d6bb9;

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

5.36

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

3.92

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#2d6bb9#8d8eb9

ORIG

SIM

Deuteranopia (green)

#2d6bb9#6057b9

ORIG

SIM

Tritanopia (blue)

#2d6bb9#30464e

ORIG

SIM

Monochrome (color blind)

#2d6bb9#6b6b6b

Mixing guide

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

MIXING PALETTE

75%

15%

RYB PIGMENTS

Ultramarine blue

Pigment

75%

Ivory black

Pigment

15%

Cadmium yellow

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

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)

14.6%

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.

Matt Blue

#2C6FBB

Campanula

#3473B7

Sail On

#4575AD

Wing Commander

#0065AC

Copper

#B97B2D

Governor Bay

#352DB9

Scooter

#2DB1B9

Hibiscus

#B92D6B

Atlantis

#6BB92D

Tall Poppy

#B9352D

Cornflower Blue

#73A2F6

Resolution Blue

#00397F