#008a9d

Deep Cerulean

Closest match (89% match)

Color formats

RGB

rgb(0, 138, 157)

Red, Green, Blue components

HSL

hsl(187, 100%, 31%)

Hue, Saturation, Lightness

CMYK

cmyk(100, 12, 0, 38)

Print color encoding

Luminance

0.206

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#008a9d

#9d1300

Analogous (Adjacent)

#009d62

#008a9d

#003b9d

Triadic

#008a9d

#9d008a

#8a9d00

Split complementary

#008a9d

#9d003b

#9d6200

Complete conversion table

HEX

#008A9D

RGB

rgb(0,138,157)

RGBA

rgba(0,138,157, 1)

HSL

hsl(187.26,100%,30.78%)

OKLCH (Modern CSS)

oklch(0.58 0.10 211.6)

CSS Variable

--color: #008a9d;

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

4.10

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

5.12

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#008a9d#92939d

ORIG

SIM

Deuteranopia (green)

#008a9d#3a2f9d

ORIG

SIM

Tritanopia (blue)

#008a9d#074149

ORIG

SIM

Monochrome (color blind)

#008a9d#7d7d7d

Mixing guide

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

MIXING PALETTE

48%

38%

14%

RYB PIGMENTS

Ultramarine blue

Pigment

48%

Ivory black

Pigment

38%

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)

20.6%

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

Oasis

#0092A3

Munsell Blue

#0093AF

Blue Moon

#3992A8

Sangria

#9D1300

Smalt

#003B9D

Green Haze

#009D62

Flirt

#9D008A

Limeade

#8A9D00

Paprika

#9D003B

Viking

#5EC4D8

Blue Stone

#005466