Sun Color

The solar disc color in the Japanese flag, a hopeful red-orange

HEX#E94E2F

RGBrgb(233, 78, 47)

HSLhsl(10, 81%, 55%)

HSVhsv(10, 80%, 91%)

CMYKcmyk(0%, 67%, 80%, 9%)

HEXA#E94E2FFF

RGBArgba(233, 78, 47, 1)

HSLAhsla(10, 81%, 55%, 1)

OKLCHoklch(76.5%, 0.123, 39)

LCHlch(71.3%, 38, 48)

🎨 Color Palettes

Analogous2-3 adjacent hues (≤60°)

Triadic3 hues spaced 120° apart

Split ComplementaryMain color + colors adjacent to its complement

Complementary2 hues spaced 180° apart

Tetradic (Rectangle)4 hues forming a rectangle

MonochromaticSingle hue with varying saturation and lightness

♿ WCAG Contrast Colors

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Aa14px Body

High Contrast Text

#FFFFFFRatio 3.8:1AA Large

Suitable for body text, headings, and primary content, ensuring readability for all users

Aa14px Body

Standard Text

#FFFFFFRatio 3.8:1AA Large

Suitable for regular body content, meeting WCAG AA standards

Aa14px Body

Large Text / UI Components

#D9EF6BRatio 3:1AA Large

Suitable for large text (≥18px bold or ≥24px), icons, UI component boundaries

Aa14px Body

Decorative / Dividers

#2FE94ERatio 2.3:1Fail

Suitable for decorative elements, dividers, non-essential text

📊 Color Scales

Online Color Picker → Gradient Generator →

Lightness VariationFixed hue and saturation, stepwise lightness adjustment ±30%

#731D0C

#A22911

#D03516

#E94E2F

#EE765D

#F39D8C

#F8C4BA

Saturation VariationFixed hue and lightness, stepwise saturation adjustment ±30%

#C76552

#D25E46

#DE563B

#E94E2F

#F54724

#FF401A

Lightness + Saturation Mixed VariationSimultaneous lightness and saturation adjustment

#7B2D1E

#A23620

#CB3C20

#E64C2D

#F0674C

#F8846D

#FDA390

Hue Fine-TuningFixed saturation and lightness, stepwise hue fine-tuning ±15°

#E92F3F

#E92F2F

#E93F2F

#E94E2F

#E95E2F

#E96D2F

#E97D2F

💡 Use Cases

⚽

Sports Support

Standard color for Japan's national team supporter gear and props, rallying the passion of fans in the stadium and creating a red wave in the stands.

🎌

National Flag Goods

Miniature flags and face stickers distributed on streets during holidays, allowing citizens to feel a connection to national identity and patriotism through participation.

🎆

Summer Festivals

The color for grand finale fireworks and mikoshi decorations, elevating the climax of matsuri to a crescendo of collective excitement amidst the night sky and cheers.

🧧

New Year Decorations

An accent color in nengajo and kadomatsu decorations, conveying blessings for the new year as hopeful and vigorous as the rising sun.

📜 Origin & History

Sun worship is central to Shinto and Japan's founding mythology, with the concept of the sun's color as the solar disc deeply embedded in the collective Yamato consciousness since ancient times. As Amaterasu Omikami, the Sun Goddess, is considered the ancestor of the Emperor, the sun color holds sacred significance.

At the end of the Heian period, during the Genpei War, the Minamoto used white banners and the Taira used red, but a formal solar disc flag system was established later. During the Sengoku period, warlords began praying for martial fortune using solar disc motifs, gradually merging the sun color with a spirit of martial valor.

In the late Edo period, the Shogunate designated the solar disc flag as the marker for Japanese ships to distinguish them from foreign vessels. The sun color transitioned from a mythic and martial symbol to a mark of national unity, especially significant amidst the context of the Black Ships' arrival.

In Meiji 3, the Nisshoki was formally adopted as the national flag, legally establishing the sun color and white as national symbols. Subsequently, in school education and national ceremonies, the sun color was imbued with spiritual values of loyalty, patriotism, and diligence.

Under the post-war constitution, the meanings of the national flag and anthem were redefined. Shedding its militaristic overtones, the sun color has been reinterpreted in modern design as a symbol of hope, vitality, and peace, widely used in sports events and public cultural activities.

🧠 Color Psychology

HopefulLike the first light of sunrise breaking darkness, the sun color triggers humanity's deepest archetype of hope, rekindling faith in the future.

IntenseThe extremely high-purity warm red-orange stimulates adrenaline, creating a psychological state full of passion and fighting spirit, unafraid of any challenge.

UnifyingAs a national symbol color, it carries a powerful sense of belonging and centripetal force, quickly establishing an emotional bond of solidarity when used in groups.

CourageousThe sun's fearlessness and constancy are projected onto this color, evoking an indomitable spirit of bold progress and self-confidence in facing difficulties.

IlluminatingAs the absolute antithesis of darkness, this color brings a sense of openness, dispelling confusion and hesitation, finding a clear direction forward.

EnergeticLike the infinite energy source of the midday sun, visually receiving this color replenishes spiritual vitality, banishing fatigue and enabling total engagement.

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