#137cff

Azure Radiance

Closest match (99% match)

Color formats

RGB

rgb(19, 124, 255)

Red, Green, Blue components

HSL

hsl(213, 100%, 54%)

Hue, Saturation, Lightness

CMYK

cmyk(93, 51, 0, 0)

Print color encoding

Luminance

0.218

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#137cff

#ff9613

Analogous (Adjacent)

#13f2ff

#137cff

#2013ff

Triadic

#137cff

#ff137c

#7cff13

Split complementary

#137cff

#ff2013

#f2ff13

Complete conversion table

HEX

#137CFF

RGB

rgb(19,124,255)

RGBA

rgba(19,124,255, 1)

HSL

hsl(213.31,100%,53.73%)

OKLCH (Modern CSS)

oklch(0.61 0.21 257.8)

CSS Variable

--color: #137cff;

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

3.92

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

5.35

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#137cff#b6b7ff

ORIG

SIM

Deuteranopia (green)

#137cff#6a5aff

ORIG

SIM

Tritanopia (blue)

#137cff#18424b

ORIG

SIM

Monochrome (color blind)

#137cff#787fa4

Mixing guide

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

MIXING PALETTE

82%

10%

RYB PIGMENTS

Ultramarine blue

Pigment

82%

Cadmium yellow

Pigment

10%

Titanium white

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)

21.8%

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.

Azure

#007FFF

Hadfield Blue

#1177FF

Deep Sky Blue

#0D75F8

Pool Water

#2188FF

Cheese Please

#FF9613

Blue

#2013FF

Cyan / Aqua

#13F2FF

Rose

#FF137C

Chartreuse

#7CFF13

Scarlet

#FF2013

Malibu

#79B4FF

Cobalt

#0049C1