#528fb9

Steel Blue

Closest match (95% match)

Color formats

RGB

rgb(82, 143, 185)

Red, Green, Blue components

HSL

hsl(204, 42%, 52%)

Hue, Saturation, Lightness

CMYK

cmyk(56, 23, 0, 27)

Print color encoding

Luminance

0.249

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#528fb9

#b97c52

Analogous (Adjacent)

#52b9af

#528fb9

#525cb9

Triadic

#528fb9

#b9528f

#8fb952

Split complementary

#528fb9

#b9525c

#b9af52

Complete conversion table

HEX

#528FB9

RGB

rgb(82,143,185)

RGBA

rgba(82,143,185, 1)

HSL

hsl(204.47,42.39%,52.35%)

OKLCH (Modern CSS)

oklch(0.63 0.09 240.4)

CSS Variable

--color: #528fb9;

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

3.51

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

5.99

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#528fb9#a1a2b9

ORIG

SIM

Deuteranopia (green)

#528fb9#7771b9

ORIG

SIM

Tritanopia (blue)

#528fb9#556672

ORIG

SIM

Monochrome (color blind)

#528fb9#898989

Mixing guide

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

MIXING PALETTE

76%

13%

10%

RYB PIGMENTS

Ultramarine blue

Pigment

76%

Cadmium yellow

Pigment

13%

Titanium white

Pigment

10%

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)

24.9%

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.

Magical Merlin

#3D8ED0

Canadian Tuxedo

#579ACA

Warm Spring

#4286BC

Treasure Map Waters

#658FAA

Santa Fe

#B97C52

Blue Violet

#525CB9

Fountain Blue

#52B9B0

Mulberry

#B9528F

Chelsea Cucumber

#8FB952

Chestnut

#B9525C

Malibu

#8FC9F6

Orient

#025980