#51bf99

Puerto Rico

Closest match (95% match)

Color formats

RGB

rgb(81, 191, 153)

Red, Green, Blue components

HSL

hsl(159, 46%, 53%)

Hue, Saturation, Lightness

CMYK

cmyk(58, 0, 20, 25)

Print color encoding

Luminance

0.413

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#51bf99

#bf5177

Analogous (Adjacent)

#51bf62

#51bf99

#51aebf

Triadic

#51bf99

#9951bf

#bf9951

Split complementary

#51bf99

#bf51ae

#bf6251

Complete conversion table

HEX

#51BF99

RGB

rgb(81,191,153)

RGBA

rgba(81,191,153, 1)

HSL

hsl(159.27,46.22%,53.33%)

OKLCH (Modern CSS)

oklch(0.73 0.12 167.5)

CSS Variable

--color: #51bf99;

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

2.27

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

9.26

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#51bf99#aeae99

ORIG

SIM

Deuteranopia (green)

#51bf99#6b6799

ORIG

SIM

Tritanopia (blue)

#51bf99#577d8b

ORIG

SIM

Monochrome (color blind)

#51bf99#acacac

Mixing guide

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

MIXING PALETTE

57%

29%

13%

RYB PIGMENTS

Ultramarine blue

Pigment

57%

Cadmium yellow

Pigment

29%

Titanium white

Pigment

13%

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

Green hue

495–570 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)

41.3%

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.

Macau

#46C299

Mermaid’s Kiss

#59C8A5

Electra

#55B492

Spearmint

#64BFA4

Blush

#BF5177

Fountain Blue

#51AEBF

Emerald

#51BF62

Fuchsia Blue

#9951BF

Twine

#BF9951

Fuchsia Pink

#BF51AE

Aquamarine

#90FDD4

Deep Sea

#008562