#537cbd

Steel Blue

Closest match (95% match)

Color formats

RGB

rgb(83, 124, 189)

Red, Green, Blue components

HSL

hsl(217, 45%, 53%)

Hue, Saturation, Lightness

CMYK

cmyk(56, 34, 0, 26)

Print color encoding

Luminance

0.199

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#537cbd

#bd9453

Analogous (Adjacent)

#53b1bd

#537cbd

#5f53bd

Triadic

#537cbd

#bd537c

#7cbd53

Split complementary

#537cbd

#bd5f53

#b1bd53

Complete conversion table

HEX

#537CBD

RGB

rgb(83,124,189)

RGBA

rgba(83,124,189, 1)

HSL

hsl(216.79,44.54%,53.33%)

OKLCH (Modern CSS)

oklch(0.59 0.11 259.3)

CSS Variable

--color: #537cbd;

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

4.21

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

4.99

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#537cbd#9999bd

ORIG

SIM

Deuteranopia (green)

#537cbd#7973bd

ORIG

SIM

Tritanopia (blue)

#537cbd#555e69

ORIG

SIM

Monochrome (color blind)

#537cbd#7b7b7b

Mixing guide

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

MIXING PALETTE

78%

14%

RYB PIGMENTS

Ultramarine blue

Pigment

78%

Titanium white

Pigment

14%

Cadmium yellow

Pigment

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

Blue hue

450–495 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)

19.9%

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.

Serenity’s Reign

#507BCE

Endless River

#567AAD

Fisher King

#5182B9

Into the Blue

#4F7BA7

Twine

#BD9453

Blue Violet

#5F53BD

Fountain Blue

#53B1BD

Blush

#BD537C

Mantis

#7CBD53

Fuzzy Wuzzy Brown

#BD5F53

Malibu

#90B5FA

Congress Blue

#044883