#66b2bf

Fountain Blue

Closest match (97% match)

Color formats

RGB

rgb(102, 178, 191)

Red, Green, Blue components

HSL

hsl(189, 41%, 57%)

Hue, Saturation, Lightness

CMYK

cmyk(47, 7, 0, 25)

Print color encoding

Luminance

0.384

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#66b2bf

#bf7366

Analogous (Adjacent)

#66bfa0

#66b2bf

#6685bf

Triadic

#66b2bf

#bf66b2

#b2bf66

Split complementary

#66b2bf

#bf6685

#bfa066

Complete conversion table

HEX

#66B2BF

RGB

rgb(102,178,191)

RGBA

rgba(102,178,191, 1)

HSL

hsl(188.76,41.01%,57.45%)

OKLCH (Modern CSS)

oklch(0.72 0.08 209.7)

CSS Variable

--color: #66b2bf;

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

2.42

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

8.69

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#66b2bf#b8b8bf

ORIG

SIM

Deuteranopia (green)

#66b2bf#8681bf

ORIG

SIM

Tritanopia (blue)

#66b2bf#6a808e

ORIG

SIM

Monochrome (color blind)

#66b2bf#a7a7a7

Mixing guide

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

MIXING PALETTE

55%

30%

15%

RYB PIGMENTS

Ultramarine blue

Pigment

55%

Titanium white

Pigment

30%

Cadmium yellow

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)

38.4%

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.

Finnish Fiord

#5DB0BE

High Dive

#59B9CC

Blue Bobbin

#52B4CA

Thalassa

#53B1BA

Contessa

#BF7366

Ship Cove

#6685BF

Silver Tree

#66BF9F

Fuchsia Pink

#BF66B2

Wild Willow

#B2BF66

Tapestry

#BF6685

Anakiwa

#A2EEFC

Lochinvar

#277985