#3fa3a8

Keppel

Closest match (90% match)

Color formats

RGB

rgb(63, 163, 168)

Red, Green, Blue components

HSL

hsl(183, 45%, 45%)

Hue, Saturation, Lightness

CMYK

cmyk(62, 3, 0, 34)

Print color encoding

Luminance

0.301

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#3fa3a8

#a8443f

Analogous (Adjacent)

#3fa878

#3fa3a8

#3f6fa8

Triadic

#3fa3a8

#a83fa3

#a3a83f

Split complementary

#3fa3a8

#a83f6f

#a8783f

Complete conversion table

HEX

#3FA3A8

RGB

rgb(63,163,168)

RGBA

rgba(63,163,168, 1)

HSL

hsl(182.86,45.45%,45.29%)

OKLCH (Modern CSS)

oklch(0.66 0.09 199.8)

CSS Variable

--color: #3fa3a8;

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

2.99

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

7.02

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#3fa3a8#a5a5a8

ORIG

SIM

Deuteranopia (green)

#3fa3a8#655fa8

ORIG

SIM

Tritanopia (blue)

#3fa3a8#446874

ORIG

SIM

Monochrome (color blind)

#3fa3a8#959595

Mixing guide

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

MIXING PALETTE

62%

19%

RYB PIGMENTS

Ultramarine blue

Pigment

62%

Cadmium yellow

Pigment

19%

Ivory black

Pigment

19%

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)

30.1%

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.

Twilight Meadow

#51A5A4

Baltic

#279D9F

Atlas Cedar

#5CA0A7

Thalassa

#53B1BA

Apple Blossom

#A8443F

San Marino

#3F6FA8

Ocean Green

#3FA879

Fuchsia Pink

#A83FA3

Sushi

#A3A83F

Rouge

#A83F6F

Aquamarine Blue

#7FDFE4

Pine Green

#006B70