#55b4bc

Fountain Blue

Closest match (99% match)

Color formats

RGB

rgb(85, 180, 188)

Red, Green, Blue components

HSL

hsl(185, 43%, 54%)

Hue, Saturation, Lightness

CMYK

cmyk(55, 4, 0, 26)

Print color encoding

Luminance

0.382

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#55b4bc

#bc5d55

Analogous (Adjacent)

#55bc91

#55b4bc

#5580bc

Triadic

#55b4bc

#bc55b4

#b4bc55

Split complementary

#55b4bc

#bc5580

#bc9155

Complete conversion table

HEX

#55B4BC

RGB

rgb(85,180,188)

RGBA

rgba(85,180,188, 1)

HSL

hsl(184.66,43.46%,53.53%)

OKLCH (Modern CSS)

oklch(0.72 0.09 202.8)

CSS Variable

--color: #55b4bc;

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

2.43

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

8.64

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#55b4bc#b8b8bc

ORIG

SIM

Deuteranopia (green)

#55b4bc#7a74bc

ORIG

SIM

Tritanopia (blue)

#55b4bc#5a7987

ORIG

SIM

Monochrome (color blind)

#55b4bc#a6a6a6

Mixing guide

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

MIXING PALETTE

65%

20%

15%

RYB PIGMENTS

Ultramarine blue

Pigment

65%

Cadmium yellow

Pigment

20%

Titanium white

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)

38.2%

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.

Thalassa

#53B1BA

Glassmith

#46B5C0

Castaway

#6DBAC0

Finnish Fiord

#5DB0BE

Fuzzy Wuzzy Brown

#BC5D55

Steel Blue

#5580BC

Silver Tree

#55BC91

Fuchsia Pink

#BC55B4

Celery

#B4BC55

Cadillac

#BC5580

Anakiwa

#94F1F9

Teal

#007B83