#3a11bb

Blue Gem

Closest match (93% match)

Color formats

RGB

rgb(58, 17, 187)

Red, Green, Blue components

HSL

hsl(254, 83%, 40%)

Hue, Saturation, Lightness

CMYK

cmyk(69, 91, 0, 27)

Print color encoding

Luminance

0.049

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#3a11bb

#92bb11

Analogous (Adjacent)

#113dbb

#3a11bb

#8f11bb

Triadic

#3a11bb

#bb3a11

#11bb3a

Split complementary

#3a11bb

#bb8f11

#3dbb11

Complete conversion table

HEX

#3A11BB

RGB

rgb(58,17,187)

RGBA

rgba(58,17,187, 1)

HSL

hsl(254.47,83.33%,40%)

OKLCH (Modern CSS)

oklch(0.39 0.23 278.6)

CSS Variable

--color: #3a11bb;

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

10.62

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.98

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#3a11bb#5c5ebb

ORIG

SIM

Deuteranopia (green)

#3a11bb#6961bb

ORIG

SIM

Tritanopia (blue)

#3a11bb#382124

ORIG

SIM

Monochrome (color blind)

#3a11bb#493175

Mixing guide

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

MIXING PALETTE

62%

21%

17%

RYB PIGMENTS

Ultramarine blue

Pigment

62%

Ivory black

Pigment

21%

Cadmium red

Pigment

17%

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)

4.9%

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.

Galactic Highway

#3311BB

Busty Blue

#3300CC

True Blue

#010FCC

Too Dark Tonight

#0011BB

Citrus

#92BB11

Seance

#8F11BB

Tory Blue

#113DBB

Rust

#BB3A11

Malachite

#11BB3A

Pizza

#BB8F11

Electric Violet

#814DF9

Navy Blue

#000080