#2100a6

Dark Blue

Closest match (96% match)

Color formats

RGB

rgb(33, 0, 166)

Red, Green, Blue components

HSL

hsl(252, 100%, 33%)

Hue, Saturation, Lightness

CMYK

cmyk(80, 100, 0, 35)

Print color encoding

Luminance

0.031

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#2100a6

#85a600

Analogous (Adjacent)

#0032a6

#2100a6

#7400a6

Triadic

#2100a6

#a62100

#00a621

Split complementary

#2100a6

#a67400

#32a600

Complete conversion table

HEX

#2100A6

RGB

rgb(33,0,166)

RGBA

rgba(33,0,166, 1)

HSL

hsl(251.93,100%,32.55%)

OKLCH (Modern CSS)

oklch(0.34 0.22 271.9)

CSS Variable

--color: #2100a6;

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

13.00

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.62

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#2100a6#494ba6

ORIG

SIM

Deuteranopia (green)

#2100a6#5249a6

ORIG

SIM

Tritanopia (blue)

#2100a6#1f0e10

ORIG

SIM

Monochrome (color blind)

#2100a6#392562

Mixing guide

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

MIXING PALETTE

55%

33%

12%

RYB PIGMENTS

Ultramarine blue

Pigment

55%

Ivory black

Pigment

33%

Cadmium red

Pigment

12%

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)

3.1%

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.

Bohemian Blue

#0000AA

Cobalt

#030AA7

Dramatic Blue

#240093

Space Exploration

#001199

Limeade

#85A600

Purple

#7400A6

International Klein Blue

#0032A6

Milano Red

#A62100

Green Haze

#00A621

Pirate Gold

#A67400

Royal Blue

#6E3FE3

Navy Blue

#00006C