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Blue · 🇯🇵 和色

瑠璃紺 (Rurikon)

#0B346E

A deep vivid blue with cool undertones. A traditional Japanese color (和色) with deep cultural roots in kimono, ink painting, and seasonal aesthetics.

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Emotion & Mood

Emotion
MysteriousVibrantCool
Mood
IntenseContemplative

Personality & Symbolism

ConfidentStrongAssertive
Cultural Symbolism

Rooted in Japanese culture, nature, and seasonal beauty.

Recommended Use

Suitable for accent colors and attention-grabbing elements.

Color Harmonies

Complementary
#0B346E
+
#6f460b
Split Complementary
#6f130b
#0B346E
#676f0b
Darker Shades
Lighter Tints

Visual Analysis

Hue215°
Saturation82%
Lightness24%
This is a dark color with high saturation. It falls in the blue hue family (215°).

Technical Values

HEX#0B346E
RGBrgb(11, 52, 110)
HSLhsl(215, 82%, 24%)
CMYK90%, 53%, 0%, 57%
ContrastDark
CSSbackground: #0B346E;

Accessibility — WCAG Contrast

White Text Sample
The quick brown fox jumps.
12.13:1
AA AAA
Black Text Sample
The quick brown fox jumps.
1.73:1
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: white (#FFFFFF).

Color Psychology

Color Temperature

This cool-toned color (hue 215°) evokes feelings of calm, trust, and intellectual focus. Cool colors tend to recede visually, creating depth and spaciousness in layouts.

Visual Weight

At 24% lightness, this color carries substantial visual weight. Dark colors add perceived importance and gravity to elements. Research shows dark elements are perceived as 10-30% heavier.

Saturation Impact

The high saturation (82%) 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.

Dark Theme & UI

Deep tones reduce eye strain in dark mode — perfect for code editors, media players, and night-mode interfaces.

CTAs & Accents

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

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