#81b4b9

Neptune

Closest match (98% match)

Color formats

RGB

rgb(129, 180, 185)

Red, Green, Blue components

HSL

hsl(185, 29%, 62%)

Hue, Saturation, Lightness

CMYK

cmyk(30, 3, 0, 27)

Print color encoding

Luminance

0.408

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#81b4b9

#b98681

Analogous (Adjacent)

#81b9a2

#81b4b9

#8198b9

Triadic

#81b4b9

#b981b4

#b4b981

Split complementary

#81b4b9

#b98198

#b9a281

Complete conversion table

HEX

#81B4B9

RGB

rgb(129,180,185)

RGBA

rgba(129,180,185, 1)

HSL

hsl(185.36,28.57%,61.57%)

OKLCH (Modern CSS)

oklch(0.74 0.05 203.7)

CSS Variable

--color: #81b4b9;

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

2.29

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

9.16

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#81b4b9#b6b6b9

ORIG

SIM

Deuteranopia (green)

#81b4b9#9492b9

ORIG

SIM

Tritanopia (blue)

#81b4b9#848c9c

ORIG

SIM

Monochrome (color blind)

#81b4b9#ababab

Mixing guide

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

MIXING PALETTE

51%

38%

11%

RYB PIGMENTS

Titanium white

Pigment

51%

Ultramarine blue

Pigment

38%

Cadmium yellow

Pigment

11%

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)

40.8%

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.

Misty Cold Sea

#83BBC1

Summit

#8BB6B8

Cuttlefish

#7FBBC2

Riverbed

#86BEBE

Brandy Rose

#B98681

Wild Blue Yonder

#8198B9

Acapulco

#81B9A2

Bouquet

#B981B4

Swamp Green

#B4B981

Bouquet

#B98198

Ice Cold

#BCF0F6

Bismark

#497B80