#63bfb3

Fountain Blue

Closest match (91% match)

Color formats

RGB

rgb(99, 191, 179)

Red, Green, Blue components

HSL

hsl(172, 42%, 57%)

Hue, Saturation, Lightness

CMYK

cmyk(48, 0, 6, 25)

Print color encoding

Luminance

0.432

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#63bfb3

#bf636f

Analogous (Adjacent)

#63bf85

#63bfb3

#639dbf

Triadic

#63bfb3

#b363bf

#bfb363

Split complementary

#63bfb3

#bf639d

#bf8563

Complete conversion table

HEX

#63BFB3

RGB

rgb(99,191,179)

RGBA

rgba(99,191,179, 1)

HSL

hsl(172.17,41.82%,56.86%)

OKLCH (Modern CSS)

oklch(0.74 0.09 184.4)

CSS Variable

--color: #63bfb3;

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

2.18

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

9.63

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#63bfb3#babab3

ORIG

SIM

Deuteranopia (green)

#63bfb3#807bb3

ORIG

SIM

Tritanopia (blue)

#63bfb3#688494

ORIG

SIM

Monochrome (color blind)

#63bfb3#b0b0b0

Mixing guide

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

MIXING PALETTE

52%

28%

20%

RYB PIGMENTS

Ultramarine blue

Pigment

52%

Titanium white

Pigment

28%

Cadmium yellow

Pigment

20%

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)

43.2%

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.

Treasured Teal

#52C1B3

Tropical Escape

#4DBBAF

Emerald Bliss

#4CBDAC

Cockatoo

#58C8B6

Contessa

#BF636F

Fountain Blue

#639DBF

Silver Tree

#63BF85

Amethyst

#B363BF

Laser

#BFB363

Hopbush

#BF639D

Anakiwa

#A0FCEF

Elm

#21857A