#688C91 Color Information

Hex color code: #688C91

A understated cyan shade, #688C91 appears as (104, 140, 145) in RGB and (187°, 16%, 49%) in HSL. It is widely used in graphic design.

Try:
Color NameSlate Gray
HEX
#688C91
RGB
104, 140, 145
HSL
187°, 16%, 49%
CMYK
28%, 3%, 0%, 43%

Shades

CSS Usage
color: #688C91;
background-color: #688C91;
border-color: #688C91;
box-shadow: 0 0 10px #688C91;
border: 2px solid #688C91;
Tailwind Usage
bg-[#688C91]
text-[#688C91]
border-[#688C91]
shadow-[0_0_10px_688C91]

Generate Gradient

Gradient CSS
background: linear-gradient(90deg, #688C91, #FF5733);

Preview in UI

Button

.btn-primary { background-color: #688C91; color: #000000; }

Badge

New Feature
.badge { background-color: #688C91; color: #000000; }

Text Highlight

The quick brown fox jumps over the lazy dog. highlighted text example shows how the color looks as a text highlight.

Card

Card Title

This card uses your color as a border accent.

.card-accent { border: 2px solid #688C91; background-color: #688C9115; }

Alert / Toast

This is an alert using your color as accent.
.alert { background-color: #688C9120; border-left: 4px solid #688C91; }

Link / Accent

This is a paragraph with a link using your color. The color can be applied to interactive elements.

a { color: #688C91; }

Related Colors

Complementary

Analogous

Triadic

Split Complementary

Tetradic

Monochromatic

Popular Colors

Common HEX Colors

Color Theory

Relationships based on the position of #688C91 in the color wheel.

Current Complementary Triadic Analogous

RGB, HSL and CMYK Values

RGB

104, 140, 145

Red: 104 / Green: 140 / Blue: 145

HSL

187°, 16%, 49%

Hue: 187° / Saturation: 16% / Lightness: 49%

CMYK

28%, 3%, 0%, 43%

Cyan: 28% / Magenta: 3% / Yellow: 0% / Key: 43%

What color is #688C91?

#688C91 is a cyan-blue hue associated with trust and professionalism.

Color Shades

Complementary Colors

Color Palette

HEX to RGB

Convert #688C91 to RGB:

rgb(104, 140, 145)HEX to RGB Converter →

HEX to HSL

Convert #688C91 to HSL:

hsl(187, 16%, 49%)RGB to HSL Converter →

HEX to CMYK

Convert #688C91 to CMYK:

cmyk(28%, 3%, 0%, 43%)Color Converter →

Color Meaning and Usage

A neutral cyan tone, #688C91 has RGB (104, 140, 145) and HSL (187°, 16%, 49%). Known for evoking trust and professionalism, this cyan-blue hue is frequently seen in web interfaces. Lighter variations like #FFFFFF create softer gradients.

The complementary color of #688C91 is #916E69, creating high-contrast pairings. For softer combinations, try analogous colors like #699182.

Use #688C91 in CSS: color: #688C91 or background-color: #688C91. Create palettes with Color Palette Generator or check contrast with Contrast Checker.

Contrast with #688C91

Sample text on this color - The quick brown fox jumps over the lazy dog.

Contrast Ratio: 5.75:1
WCAG AA: Pass
WCAG AAA: Fail

Need more control? Contrast Checker →

Frequently Asked Questions

What color is #688C91?

#688C91 is a neutral cyan color - a cyan-blue hue that evokes trust and professionalism.

What is the RGB value of #688C91?

#688C91 in RGB is (104, 140, 145) - 104 red, 140 green, and 145 blue.

How to use #688C91 in CSS?

Use #688C91 directly in your CSS properties like color or background-color.

What colors go well with #688C91?

#916E69 (complementary), #699182 (analogous), and #496165 (lighter shade) work well with #688C91.