#004661

Astronaut Blue

Closest match (95% match)

Color formats

RGB

rgb(0, 70, 97)

Red, Green, Blue components

HSL

hsl(197, 100%, 19%)

Hue, Saturation, Lightness

CMYK

cmyk(100, 28, 0, 62)

Print color encoding

Luminance

0.052

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#004661

#611b00

Analogous (Adjacent)

#00614b

#004661

#001561

Triadic

#004661

#610046

#466100

Split complementary

#004661

#610015

#614b00

Complete conversion table

HEX

#004661

RGB

rgb(0,70,97)

RGBA

rgba(0,70,97, 1)

HSL

hsl(196.7,100%,19.02%)

OKLCH (Modern CSS)

oklch(0.37 0.08 232.4)

CSS Variable

--color: #004661;

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

10.25

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

2.05

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#004661#525261

ORIG

SIM

Deuteranopia (green)

#004661#241d61

ORIG

SIM

Tritanopia (blue)

#004661#042125

ORIG

SIM

Monochrome (color blind)

#004661#414141

Mixing guide

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

MIXING PALETTE

62%

31%

RYB PIGMENTS

Ivory black

Pigment

62%

Ultramarine blue

Pigment

31%

Cadmium yellow

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

Cyan hue

485–500 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)

5.2%

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.

Maniac Mansion

#004058

Capital Blue

#1A4157

Seafarer

#204D68

One Year of Rain

#29465B

Cedar Wood Finish

#611B00

Midnight Blue

#001561

Blue Stone

#00614C

Pompadour

#610046

Verdun Green

#466100

Rosewood

#610015

Wedgewood

#477A98

Midnight

#00182F