#010039

Stratos

Closest match (98% match)

Color formats

RGB

rgb(1, 0, 57)

Red, Green, Blue components

HSL

hsl(241, 100%, 11%)

Hue, Saturation, Lightness

CMYK

cmyk(98, 100, 0, 78)

Print color encoding

Luminance

0.003

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#010039

#383900

Analogous (Adjacent)

#001c39

#010039

#1e0039

Triadic

#010039

#390100

#003901

Split complementary

#010039

#391e00

#1c3900

Complete conversion table

HEX

#010039

RGB

rgb(1,0,57)

RGBA

rgba(1,0,57, 1)

HSL

hsl(241.05,100%,11.18%)

OKLCH (Modern CSS)

oklch(0.16 0.11 265.6)

CSS Variable

--color: #010039;

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

19.80

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.06

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#010039#191a39

ORIG

SIM

Deuteranopia (green)

#010039#161239

ORIG

SIM

Tritanopia (blue)

#010039#010000

ORIG

SIM

Monochrome (color blind)

#010039#0a0a0a

Mixing guide

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

MIXING PALETTE

77%

22%

RYB PIGMENTS

Ivory black

Pigment

77%

Ultramarine blue

Pigment

22%

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)

0.3%

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.

Oblivion

#000435

Storm

#000B44

Endless Galaxy

#000044

Deadly Depths

#111144

Madras

#383900

Tolopea

#1E0039

Midnight

#001C39

Temptress

#390100

Deep Fir

#003901

Cola

#391D00

Jacarta

#37326D

Black Russian

#00000D