#677f87

Slate Gray

Closest match (94% match)

Color formats

RGB

rgb(103, 127, 135)

Red, Green, Blue components

HSL

hsl(195, 13%, 47%)

Hue, Saturation, Lightness

CMYK

cmyk(24, 6, 0, 47)

Print color encoding

Luminance

0.198

Relative luminance

Variations

Shades (Darkening)

Tints (Lightening)

Tones (Reduced saturation)

Harmonies

Click the color slices to copy the code.

Complementary (Opposite)

#677f87

#876f67

Analogous (Adjacent)

#67877f

#677f87

#676f87

Triadic

#677f87

#87677f

#7f8767

Split complementary

#677f87

#87676f

#877f67

Complete conversion table

HEX

#677F87

RGB

rgb(103,127,135)

RGBA

rgba(103,127,135, 1)

HSL

hsl(195,13.45%,46.67%)

OKLCH (Modern CSS)

oklch(0.58 0.03 220.1)

CSS Variable

--color: #677f87;

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

4.23

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

On black background

4.96

Small text (14pt)

The quick brown fox jumps over...

AAA

Large text or UI (18pt Bold)

AAA

Color blindness simulator

ORIG

SIM

Protanopia (red)

#677f87#838387

ORIG

SIM

Deuteranopia (green)

#677f87#727187

ORIG

SIM

Tritanopia (blue)

#677f87#686874

ORIG

SIM

Monochrome (color blind)

#677f87#7b7b7b

Mixing guide

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

MIXING PALETTE

53%

35%

12%

RYB PIGMENTS

Ultramarine blue

Pigment

53%

Ivory black

Pigment

35%

Cadmium yellow

Pigment

12%

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)

19.8%

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.

Catfish

#657D82

Citadel

#6A7F8B

Blue Blood

#6B7F81

Night Rendezvous

#66787E

Sand Dune

#876F67

Storm Gray

#676F87

Viridian Green

#67877F

Strikemaster

#87677F

Flax Smoke

#7F8767

Falcon

#87676F

Tower Gray

#9FB8C1

Oxford Blue

#334A52