#001787

Resolution Blue

Closest match (97% match)

Color formats

RGB

rgb(0, 23, 135)

Red, Green, Blue components

HSL

hsl(230, 100%, 26%)

Hue, Saturation, Lightness

CMYK

cmyk(100, 83, 0, 47)

Print color encoding

Luminance

0.024

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#001787

#877000

Analogous (Adjacent)

#005a87

#001787

#2c0087

Triadic

#001787

#870017

#178700

Split complementary

#001787

#872c00

#5a8700

Complete conversion table

HEX

#001787

RGB

rgb(0,23,135)

RGBA

rgba(0,23,135, 1)

HSL

hsl(229.78,100%,26.47%)

OKLCH (Modern CSS)

oklch(0.30 0.18 264.1)

CSS Variable

--color: #001787;

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

14.26

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.47

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#001787#484987

ORIG

SIM

Deuteranopia (green)

#001787#322987

ORIG

SIM

Tritanopia (blue)

#001787#010b0c

ORIG

SIM

Monochrome (color blind)

#001787#2d2642

Mixing guide

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

MIXING PALETTE

51%

47%

RYB PIGMENTS

Ultramarine blue

Pigment

51%

Ivory black

Pigment

47%

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

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)

2.4%

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 Cruise

#111188

Royal

#0C1793

Nightly Expedition

#221188

Space Exploration

#001199

Olive

#877000

Kingfisher Daisy

#2C0087

Orient

#005A87

Red Devil

#870017

Japanese Laurel

#178700

Red Beech

#872C00

Blue Violet

#5848C2

Stratos

#000050