#040c6e

Gulf Blue

Closest match (94% match)

Color formats

RGB

rgb(4, 12, 110)

Red, Green, Blue components

HSL

hsl(235, 93%, 22%)

Hue, Saturation, Lightness

CMYK

cmyk(96, 89, 0, 57)

Print color encoding

Luminance

0.014

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#040c6e

#6e6604

Analogous (Adjacent)

#04416e

#040c6e

#31046e

Triadic

#040c6e

#6e040c

#0c6e04

Split complementary

#040c6e

#6e3104

#416e04

Complete conversion table

HEX

#040C6E

RGB

rgb(4,12,110)

RGBA

rgba(4,12,110, 1)

HSL

hsl(235.47,92.98%,22.35%)

OKLCH (Modern CSS)

oklch(0.26 0.16 265.7)

CSS Variable

--color: #040c6e;

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

16.37

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

1.28

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#040c6e#37386e

ORIG

SIM

Deuteranopia (green)

#040c6e#2b246e

ORIG

SIM

Tritanopia (blue)

#040c6e#040708

ORIG

SIM

Monochrome (color blind)

#040c6e#221d2d

Mixing guide

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

MIXING PALETTE

57%

42%

RYB PIGMENTS

Ivory black

Pigment

57%

Ultramarine blue

Pigment

42%

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)

1.4%

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.

Dying Storm Blue

#111166

Alone in the Dark

#000066

Insomniac Blue

#110077

The Vast of Night

#110066

Yukon Gold

#6E6604

Christalle

#31046E

Regal Blue

#04416E

Red Oxide

#6E040C

Japanese Laurel

#0C6E04

Red Beech

#6E3104

Gigas

#513DA7

Stratos

#00003A