#40979e

Keppel

Closest match (88% match)

Color formats

RGB

rgb(64, 151, 158)

Red, Green, Blue components

HSL

hsl(184, 42%, 44%)

Hue, Saturation, Lightness

CMYK

cmyk(59, 4, 0, 38)

Print color encoding

Luminance

0.257

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#40979e

#9e4740

Analogous (Adjacent)

#409e76

#40979e

#40689e

Triadic

#40979e

#9e4097

#979e40

Split complementary

#40979e

#9e4068

#9e7640

Complete conversion table

HEX

#40979E

RGB

rgb(64,151,158)

RGBA

rgba(64,151,158, 1)

HSL

hsl(184.47,42.34%,43.53%)

OKLCH (Modern CSS)

oklch(0.63 0.08 202.5)

CSS Variable

--color: #40979e;

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

3.42

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

6.14

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#40979e#9a9a9e

ORIG

SIM

Deuteranopia (green)

#40979e#625c9e

ORIG

SIM

Tritanopia (blue)

#40979e#44626e

ORIG

SIM

Monochrome (color blind)

#40979e#8b8b8b

Mixing guide

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

MIXING PALETTE

57%

26%

17%

RYB PIGMENTS

Ultramarine blue

Pigment

57%

Ivory black

Pigment

26%

Cadmium yellow

Pigment

17%

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)

25.7%

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.

Baltic

#279D9F

Java

#259797

Atlas Cedar

#5CA0A7

Rainy Mood

#4499AA

Sepia Skin

#9E4740

San Marino

#40689E

Ocean Green

#409E76

Rouge

#9E4097

Sycamore

#979E40

Vin Rouge

#9E4068

Bermuda

#7ED2D9

Blue Stone

#006067