02.0 COLOR

Three colours. Four functions.

The palette is built around three anchors: Berlin Slate as the dark canvas, Paper as the warm light backdrop, and Sovereign Lime as line + signal accent. Functional colours (amber, red) carry semantic meaning when they appear; never decoration.

Tokens

Berlin Slate Deep #1a2330

Token: berlinSlateDeep
RGB: 26 · 35 · 48
CMYK: 85 · 73 · 55 · 65
Role: primary dark · hero · deep sections

Berlin Slate #2a3744

Token: berlinSlate
RGB: 42 · 55 · 68
CMYK: 80 · 65 · 50 · 50
Role: surface · card

Berlin Slate Elevated #364655

Token: berlinSlateElev
RGB: 54 · 70 · 85
CMYK: 75 · 60 · 45 · 35
Role: hover · elevated surface

Slate Deepest #11161e

Token: slateDeepest
RGB: 17 · 22 · 30
CMYK: 88 · 78 · 60 · 75
Role: deepest dark · colophon

Paper #f6f3ee

Token: paper
RGB: 246 · 243 · 238
CMYK: 2 · 2 · 5 · 0
Role: primary light

Paper Warm #ede8df

Token: paperWarm
RGB: 237 · 232 · 223
CMYK: 4 · 4 · 9 · 0
Role: body text on slate · elevated light

Ink #0c0c0c

Token: ink
RGB: 12 · 12 · 12
CMYK: 70 · 65 · 65 · 90
Role: body text on paper

Ink Secondary #3a3a3a

Token: inkSecondary
RGB: 58 · 58 · 58
CMYK: 62 · 55 · 55 · 60
Role: secondary body on paper

Ink Muted #6a6a6a

Token: inkMuted
RGB: 106 · 106 · 106
CMYK: 55 · 45 · 45 · 35
Role: muted on paper

Sovereign Lime #a3c853

Token: sovereignLime
RGB: 163 · 200 · 83
CMYK: 40 · 0 · 80 · 10
Role: accent · status · line + signal only

Sovereign Lime Dim #7fa040

Token: sovereignLimeDim
RGB: 127 · 160 · 64
CMYK: 50 · 15 · 90 · 20
Role: secondary lime · de-emphasised

Sovereign Lime Deep #5a7530

Token: sovereignLimeDeep
RGB: 90 · 117 · 48
CMYK: 60 · 25 · 100 · 40
Role: lime for paper backgrounds · WCAG AA

Signal Amber #d49a48

Token: signalAmber
RGB: 212 · 154 · 72
CMYK: 15 · 40 · 80 · 5
Role: warning · pending

Signal Red #c0463a

Token: signalRed
RGB: 192 · 70 · 58
CMYK: 18 · 85 · 80 · 5
Role: error · critical

Contrast matrix

WCAG 2.2 AA passes at 4.5:1 for body text and 3:1 for large text and graphical objects. AAA passes at 7:1.

	`berlinSlateDeep`	`berlinSlate`	`paper`	`paperWarm`
`paperWarm`	12.97 AAA	9.96 AAA	1.10 -	1.00 -
`paperOnSlateDim`	12.97 AAA	9.96 AAA	1.10 -	1.00 -
`ink`	1.24 -	1.61 -	17.67 AAA	16.03 AAA
`inkSecondary`	1.39 -	1.07 -	10.28 AAA	9.32 AAA
`sovereignLime`	8.25 AAA	6.33 AA	1.73 -	1.57 -
`sovereignLimeDeep`	3.03 -	2.33 -	4.72 AA	4.28 -