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Color
#0c2640
#0c2640
hex
#0c2640rgb
rgb(12, 38, 64)hsl
hsl(210, 68%, 15%)oklch
oklch(0.264 0.058 251)Closest name: Dark Eclipse (#112244)Relative luminance 0.0183
Colors that go with #0c2640
Charcoal, Crimson and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #0c2640: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #0c2640 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #0c2640 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #0c2640 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Slate Blue #6a5acd
analogousshippedSlate Blue is #0c2640's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal #008080
analogousshippedTeal is #0c2640's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #0c2640 in 18 real palettes, including Beach Hut and Southwest Airlines's brand system, as the supporting colour.
Blue #0000ff
shipped23 real palettes, including Monzo's brand system and Sketch's brand system put Blue beside #0c2640, as the accent.
Real palettes that use #0c2640
Tints & shades
Harmonies
Contrast
| #0c2640 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 15.36:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.37:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c2640 as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#0c2640 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #0c2640
live endpointPoint any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #0c2640 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/0c2640-9cabc4-df514e-1f202d-e9f1f1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md