#166DDB

A medium, vivid blue closely aligning with Royalblue.

About #166DDB

When working with digital screens, the color #166DDB is rendered by mixing light. If you're using CSS, you might find it aligns closely with Royalblue. To achieve this exact tint on a monitor, you would use an RGB mix of 22, 109, and 219.

While screens use RGB, printing presses rely on Cyan, Magenta, Yellow, and Key (black). To reproduce this shade on paper, a printer utilizes 90% cyan and 50% magenta inks. The HSL representation is 213.5° hue, 81.7% saturation, and 47.3% lightness.

Ensuring your text is legible against this background is a key part of web design. Because it is a medium color, it is generally recommended to use #FFFFFF text. Strict adherence to these ratios protects visually impaired users from unreadable interfaces.

Color Space Conversions

HEX#166DDB
RGB22, 109, 219
HSL213.5°, 81.7%, 47.3%
CMYK90%, 50%, 0%, 14%
HSV213.5°, 90.0%, 85.9%
LAB47.3, 17.5, -62.9
XYZ18.6, 16.2, 69.2
Decimal1469915

Color Harmonies

Complementary

Analogous

Triadic

Tints, Shades & Tones

Tints (Adding White)

Shades (Adding Black)

WCAG Contrast Accessibility

4.95:1
Text on #FFFFFF
AA
4.24:1
Text on #000000
AA Large
4.73:1
Text on #F8FAFC
AA
3.61:1
Text on #0F172A
AA Large

CSS Implementation

.bg-color { background-color: #166DDB; }
.text-color { color: #166DDB; }
.border-color { border: 2px solid #166DDB; }

Similar Colors

Royalblue
#4169E1