Named color

Eternal Darkness

#1c2841

hex#1c2841

rgbrgb(28, 40, 65)

hslhsl(221, 40%, 18%)

oklchoklch(0.279 0.049 264)

Relative luminance 0.0215

Cool Dark Luxury Bold Modern

Open in palette tool Check contrast

Eternal Darkness on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the curated palettes it appears in and any public brand that adopts it.

Tints & shades

Tints — toward white

28395d 344a79 405b96 4d6db3 6984bf 869ccb a2b3d7 bfcae3 dbe2f0 f8f9fc

Shades — toward black

1a253d 172136 151e32 121a2b 111827 0f1624 0c111d 0b0f19 080b12 06090e

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

1c2841 40351c

#40351c

Analogous

Open in tool →

1c2841 1c3a40 221c40

#1c3a40 · #221c40

Triadic

Open in tool →

1c2841 401c27 27401c

#401c27 · #27401c

Split-complementary

Open in tool →

1c2841 40221c 3a401c

#40221c · #3a401c

Tetradic

Open in tool →

1c2841 401c3a 40351c 1c4022

#401c3a · #40351c · #1c4022

Contrast

Eternal Darkness as text	Ratio	AA	AA large	AAA	Fix
Aaon white	14.69:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	1.43:1	fail	fail	fail	AA: use #5473b6 as the text (4.5:1) AAA: use #7e96c8 as the text (7.08:1) AA: or shift the background to #8f8f8f (4.54:1) AAA: or shift the background to #b3b3b3 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with Eternal Darkness as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

1d4ed8 64748b f59e0b ffffff 1e293b

Campus

Open in tool →

Institutional blue with a highlighter-amber accent — trustworthy for parents, lively enough for students.

Friendly Cool CleanEducation

2f6690 8fa3b8 e3a72f ffffff 1b2a41

Open House

Open in tool →

Steel blue for trust, warm gold for the sold moment — an approachable brokerage that still feels established.

Clean Cool ModernReal Estate

2a9d8f 8ecae6 e9c46a f7fafc 1a2b3c

Coastal

Open in tool →

Sea-teal, sky and sand — bright without shouting; works for travel, wellness, and anything near water.

Cool Light Clean

Fonts for this mood

Eternal Darkness reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

Luxury fonts →Bold fonts →Modern fonts →

mcpConnect your agent — build around Eternal Darkness

live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp

claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp

try this prompt

›analyze #1c2841 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1c2841-9ca4c4-df6b4e-211f2d-e9eff1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md