#557a87

Smalt Blue

Closest match (97% match)

Color formats

RGB

rgb(85, 122, 135)

Red, Green, Blue components

HSL

hsl(196, 23%, 43%)

Hue, Saturation, Lightness

CMYK

cmyk(37, 10, 0, 47)

Print color encoding

Luminance

0.176

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#557a87

#876255

Analogous (Adjacent)

#55877b

#557a87

#556187

Triadic

#557a87

#87557a

#7a8755

Split complementary

#557a87

#875561

#877b55

Complete conversion table

HEX

#557A87

RGB

rgb(85,122,135)

RGBA

rgba(85,122,135, 1)

HSL

hsl(195.6,22.73%,43.14%)

OKLCH (Modern CSS)

oklch(0.56 0.05 221.8)

CSS Variable

--color: #557a87;

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

4.65

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

4.52

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#557a87#808087

ORIG

SIM

Deuteranopia (green)

#557a87#676487

ORIG

SIM

Tritanopia (blue)

#557a87#575e69

ORIG

SIM

Monochrome (color blind)

#557a87#747474

Mixing guide

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

MIXING PALETTE

48%

41%

11%

RYB PIGMENTS

Ultramarine blue

Pigment

48%

Ivory black

Pigment

41%

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)

17.6%

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.

Night Owl

#5D7B89

Hydro

#49747F

North Atlantic

#5E7B7F

Winter Storm

#4B7079

Beaver

#876255

Waikawa Gray

#556187

Cutty Sark

#55877B

Strikemaster

#87557A

Avocado

#7A8755

Au Chico

#875561

Nepal

#8DB3C1

Blue Dianne

#204652