黄丹Ōtan

おうたん · Imperial ocher · family orange

A named color for imperial ocher.

黄丹 (Ōtan) is catalogued here as imperial ocher. Tobunken records 黄丹 (historical name attestation). No standard measured sRGB/Lab value tied to this exact historical usage is currently available; HEX is a modern authoritative approximation.

Tobunken records the underlying color/material term in the Nara-period vocabulary database derived from 『大日本古文書』; this supports historical name attestation, not measured sRGB.

Name appears in at least one CC BY-SA Wikipedia traditional Japanese color list; HEX remains a Chroma Cathay digital approximation for design use.

Traditional color names predate modern screen color spaces, so this HEX value is a design approximation rather than a material measurement.

USAGEWhere it works

Branding

Orange accent for cultural, hospitality, or editorial systems

Packaging

Seasonal goods, stationery, and boxed sets

Illustration

Soft fills, background fields, and seasonal scenes

UI accent

Surface tint, highlight, token swatch, or subtle state color

SOURCESEvidence trail

東京文化財研究所彩色関係資料データベース（語彙・史料篇）Public research database; use as historical name/material attestation, not colorimetry.NAME ATTESTATION ↗Wikipedia: Traditional colors of JapanCC BY-SA 4.0; values are modern reference approximations, not historical measurements.REFERENCE VALUE ↗Wikipedia: 日本の色の一覧CC BY-SA 4.0; entries are approximate examples and may disagree with other references.NAME ATTESTATION ↗

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