China Colour Intelligence
Blue#425066
黛蓝(dài lán)
Ink Blue
Colour Values色值
HEX
#425066
RGB
rgb(66, 80, 102)
HSL
hsl(217, 21%, 33%)
OKLCH
oklch(0.428 0.041 259.3)
CMYK
35, 22, 0, 60
approx
Global Colour Equivalents国际色卡对照
CSS nearest ≈
darkslategray
#2F4F4F
Pantone FHI/TCX ≈
crown-blue
#464B65
Nearest perceptual match (OKLab). Pantone value is from an unofficial dataset — approximate; verify against official swatches before production.
Imagery & Provenance意象与出处
Imagery
Indigo-dark
Origin
Eyebrow-black (dai stone)
System
A Classical names
Source
The colour of dai stone, used for painting eyebrows.
Evidence
Ancient-text attestation (attestation > artifact > compilation > approximation)
Imagery意象图

Brand & Product References国际色号案例

Pantone Classic Blue
#0F4C81 · ≈ Δ0.069 (OKLab)
Pantone 19-4052 (2020 COTY)
photo: Divya Parhiban · CC BY-SA 4.0

Domino's Blue
#006491 · ≈ Δ0.085 (OKLab)
Domino's
photo: Dinkun Chen · CC BY-SA 4.0

Pepsi Blue
#004B93 · ≈ Δ0.095 (OKLab)
Pepsi
photo: Chris Woodrich · Public domain
Editorial reference only — same/near shade used by these brands. Names and colours are trademarks of their respective owners; photos are CC-licensed from Wikimedia Commons (see credit on each card); no affiliation or endorsement implied.
Cultural Note for non-Chinese Designers文化提示
CautionBlue = calm, porcelain (blue-and-white). Shares the 青 heritage.
Same Family同色系
Pantone/CSS values are nearest perceptual matches (OKLab distance), not official colour codes.
