#51c299

Puerto Rico

Closest match (94% match)

Color formats

RGB

rgb(81, 194, 153)

Red, Green, Blue components

HSL

hsl(158, 48%, 54%)

Hue, Saturation, Lightness

CMYK

cmyk(58, 0, 21, 24)

Print color encoding

Luminance

0.426

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#51c299

#c2517a

Analogous (Adjacent)

#51c261

#51c299

#51b2c2

Triadic

#51c299

#9951c2

#c29951

Split complementary

#51c299

#c251b2

#c26151

Complete conversion table

HEX

#51C299

RGB

rgb(81,194,153)

RGBA

rgba(81,194,153, 1)

HSL

hsl(158.23,48.09%,53.92%)

OKLCH (Modern CSS)

oklch(0.74 0.12 166.2)

CSS Variable

--color: #51c299;

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

2.20

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

9.53

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#51c299#b0b099

ORIG

SIM

Deuteranopia (green)

#51c299#6b6799

ORIG

SIM

Tritanopia (blue)

#51c299#577e8d

ORIG

SIM

Monochrome (color blind)

#51c299#afafaf

Mixing guide

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

MIXING PALETTE

56%

29%

15%

RYB PIGMENTS

Ultramarine blue

Pigment

56%

Cadmium yellow

Pigment

29%

Titanium white

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

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)

42.6%

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

Minted Elegance

#6EC9A3

Bleached Olive

#55BB88

Mulberry

#C2517A

Fountain Blue

#51B2C2

Emerald

#51C261

Amethyst

#9951C2

Tussock

#C29951

Fuchsia Pink

#C251B2

Aquamarine

#90FFD4

Deep Sea

#008762