#66bfbf

Fountain Blue

Closest match (95% match)

Color formats

RGB

rgb(102, 191, 191)

Red, Green, Blue components

HSL

hsl(180, 41%, 57%)

Hue, Saturation, Lightness

CMYK

cmyk(47, 0, 0, 25)

Print color encoding

Luminance

0.438

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#66bfbf

#bf6666

Analogous (Adjacent)

#66bf93

#66bfbf

#6692bf

Triadic

#66bfbf

#bf66bf

#bfbf66

Split complementary

#66bfbf

#bf6693

#bf9266

Complete conversion table

HEX

#66BFBF

RGB

rgb(102,191,191)

RGBA

rgba(102,191,191, 1)

HSL

hsl(180,41.01%,57.45%)

OKLCH (Modern CSS)

oklch(0.75 0.09 195.5)

CSS Variable

--color: #66bfbf;

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

2.15

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

9.77

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#66bfbf#bfbfbf

ORIG

SIM

Deuteranopia (green)

#66bfbf#8681bf

ORIG

SIM

Tritanopia (blue)

#66bfbf#6a8695

ORIG

SIM

Monochrome (color blind)

#66bfbf#b1b1b1

Mixing guide

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

MIXING PALETTE

53%

30%

18%

RYB PIGMENTS

Ultramarine blue

Pigment

53%

Titanium white

Pigment

30%

Cadmium yellow

Pigment

18%

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)

43.8%

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.

Castaway

#6DBAC0

Petrichor

#66CCCC

Cyantific

#77C9C2

Sea Serpent

#4BC7CF

Contessa

#BF6666

Ship Cove

#6692BF

Silver Tree

#66BF93

Fuchsia Pink

#BF66BF

Wild Willow

#BFBF66

Tapestry

#BF6693

Anakiwa

#A3FCFC

Lochinvar

#248586