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Warm · 🇯🇵 和色 · 🗳️ XKCD

赤铜旧 (Aged Copper Red)

#673B2C

古旧赤铜器的暗红褐光泽 — a color that has never been formally named in any known color database (XKCD, CSS, Crayola), discovered through CIEDE2000 color-space gap analysis with ΔE=9.21 from nearest named color.

Generate palette with this color →

Emotion & Mood

Emotion
Warmthgroundingcomfort
Mood
Cozy and intimatesubdued yet rich

Personality & Symbolism

Earthysteadfastauthentic
Cultural Symbolism

Stability, endurance, quiet strength

Recommended Use

Leather goods, artisan branding, vintage interior design, coffee shop aesthetics.

Color Harmonies

Complementary
#673B2C
+
#2c5968
Split Complementary
#2c6859
#673B2C
#2c3b68
Darker Shades
Lighter Tints

Visual Analysis

Hue15°
Saturation40%
Lightness29%
This is a dark color with moderate saturation. It falls in the red hue family (15°).

Technical Values

HEX#673B2C
RGBrgb(103, 59, 44)
HSLhsl(15, 40%, 29%)
CMYK0%, 43%, 57%, 60%
ContrastLight
CSSbackground: #673B2C;

Accessibility — WCAG Contrast

White Text Sample
The quick brown fox jumps.
9.38:1
AA AAA
Black Text Sample
The quick brown fox jumps.
2.24:1
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 warm-toned color (hue 15°) triggers psychological responses associated with energy, comfort, and action. Warm colors appear to advance towards the viewer, making elements feel closer and more prominent.

Visual Weight

At 29% 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

Moderate saturation (40%) strikes a balance between engagement and comfort. These tones can be viewed for extended periods without fatigue, making them ideal for interfaces used daily.

Design Applications

Food & Beverage

Stimulates appetite and conveys urgency — ideal for restaurant branding, food packaging, and sale promotions.

Health & Vitality

Represents life energy and passion — great for fitness brands, health apps, and wellness products.

Dark Theme & UI

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

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