Color
#0a436b
#0a436brgb(10, 67, 107)hsl(205, 83%, 23%)oklch(0.371 0.088 245.7)Colors that go with #0a436b
Crimson, Royal Blue and Teal 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.
Crimson #dc143c
triadicshippedCrimson completes a triad with #0a436b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Royal Blue #4169e1
analogousshippedRoyal Blue is #0a436b'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 #0a436b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped9 real palettes, including Alaska Airlines's brand system and Jeep's brand system put Blue beside #0a436b, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #0a436b: 5 real palettes, including Open House and Paper & Pine, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #0a436b: 4 real palettes, including Notion's brand system and Desert Road.
Denim #1560bd
shippedDesigners have shipped Denim with #0a436b: 19 real palettes, including Hasbro's brand system and Hinge's brand system, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #0a436b: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #0a436b
Tints & shades
Harmonies
Contrast
| #0a436b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.35:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.03:1 | 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 #0a436b as the background.
Brands using this color
Fonts for this mood
#0a436b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
Point 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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #0a436b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/0a436b-9cafc4-df4e58-1f212d-e9f1f0?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