#3a00bc

Dark Blue

Closest match (97% match)

Color formats

RGB

rgb(58, 0, 188)

Red, Green, Blue components

HSL

hsl(259, 100%, 37%)

Hue, Saturation, Lightness

CMYK

cmyk(69, 100, 0, 26)

Print color encoding

Luminance

0.045

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#3a00bc

#82bc00

Analogous (Adjacent)

#0024bc

#3a00bc

#9800bc

Triadic

#3a00bc

#bc3a00

#00bc3a

Split complementary

#3a00bc

#bc9800

#24bc00

Complete conversion table

HEX

#3A00BC

RGB

rgb(58,0,188)

RGBA

rgba(58,0,188, 1)

HSL

hsl(258.51,100%,36.86%)

OKLCH (Modern CSS)

oklch(0.39 0.24 279.0)

CSS Variable

--color: #3a00bc;

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

11.02

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.91

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#3a00bc#5355bc

ORIG

SIM

Deuteranopia (green)

#3a00bc#6a61bc

ORIG

SIM

Tritanopia (blue)

#3a00bc#37191b

ORIG

SIM

Monochrome (color blind)

#3a00bc#482c77

Mixing guide

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

MIXING PALETTE

56%

24%

20%

RYB PIGMENTS

Ultramarine blue

Pigment

56%

Ivory black

Pigment

24%

Cadmium red

Pigment

20%

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)

4.5%

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

Limeade

#82BC00

Purple

#9800BC

International Klein Blue

#0024BC

Fire

#BC3A00

Jade

#00BC3A

Buddha Gold

#BC9800

Electric Violet

#8245FA

Navy Blue

#000081