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Blue · 🗳️ XKCD

Periwinkle Blue

#8F99FB

A light vivid blue with cool undertones. Named by popular vote in the XKCD color survey — a crowdsourced color name used by 97+ respondents.

Generate palette with this color →

Emotion & Mood

Emotion
CalmVibrantCool
Mood
CheerfulUplifting

Personality & Symbolism

BoldExpressiveOutgoing
Recommended Use

Suitable for accent colors and attention-grabbing elements.

Color Harmonies

Complementary
#8f99fb
+
#fbf08e
Split Complementary
#fbb98e
#8f99fb
#cffb8e
Darker Shades
Lighter Tints

Visual Analysis

Hue234°
Saturation93%
Lightness77%
This is a light color with high saturation. It falls in the blue hue family (234°).

Technical Values

HEX#8F99FB
RGBrgb(143, 153, 251)
HSLhsl(234, 93%, 77%)
CMYK43%, 39%, 0%, 2%
ContrastLight
CSSbackground: #8f99fb;

Accessibility — WCAG Contrast

White Text Sample
The quick brown fox jumps.
2.59:1
AA AAA
Black Text Sample
The quick brown fox jumps.
8.12:1
AA AAA

WCAG 2.1 requires a contrast ratio of ≥4.5:1 for AA (normal text) and ≥7:1 for AAA. Best text color for this background: black (#000000).

Color Psychology

Color Temperature

This cool-toned color (hue 234°) evokes feelings of calm, trust, and intellectual focus. Cool colors tend to recede visually, creating depth and spaciousness in layouts.

Visual Weight

With 77% lightness, this color feels lightweight and expansive. Light colors psychologically reduce perceived weight of UI elements by up to 20%, making interfaces feel more airy.

Saturation Impact

The high saturation (93%) creates a vibrant, attention-demanding presence. Highly saturated colors are processed faster by the human brain — reaction time decreases by approximately 50ms compared to desaturated variants.

Design Applications

Corporate & Enterprise

Communicates trust and professionalism — the top choice for corporate sites, legal firms, and B2B SaaS.

Government & Institutions

Authority and dependability — frequently used for government portals, educational institutions, and official communications.

Backgrounds & Space

Light tones create spacious, breathable layouts — ideal for content-heavy pages, minimalist designs, and card backgrounds.

CTAs & Accents

High saturation draws attention — use for primary buttons, notification badges, and important interactive elements.

Similar Colors

Medium Blue-Violet
#3C4CFC
Dark Emerald Green
#020837
Dusk
#4E5481
鸦青墨 (Crow Ink Blue)
#3B3D58
Dark Slate Gray
#31356F
Mediterranean Blue
#9BA1F7
藤鼠 (Fujinezumi)
#6E75A4
Quiet Storm (静谧风暴)
#4A4E69