Fintech Trust
Open in tool →Navy signals custody and stability; the green accent is money moving the right way. No red anywhere except errors.
Color
#183c91
#183c91
hex
#183c91rgb
rgb(24, 60, 145)hsl
hsl(222, 72%, 33%)oklch
oklch(0.387 0.147 263.6)Closest name: Deep Space Royal (#223382)Relative luminance 0.0547
Colors that go with #183c91
Charcoal, Steel Blue and Blue 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 #183c91: softer than #000 and cool enough to feel like part of the same palette.
Steel Blue #4682b4
analogousshippedSteel Blue is #183c91's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped6 real palettes, including Procter & Gamble's brand system and CVS's brand system put Blue beside #183c91, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #183c91 in 12 real palettes, including Pepsi's brand system and Walgreens's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #183c91: 15 real palettes, including Warbyparker's brand system and Unilever's brand system, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #183c91: 4 real palettes, including Nintendo's brand system and MLB's brand system, as the accent.
Midnight Blue #191970
shipped15 real palettes, including Fintech Trust and Blue Mono put Midnight Blue beside #183c91, as that palette's text colour.
Orange Red #ff4500
shippedOrange Red is paired with #183c91 in 5 real palettes, including NASA's brand system and Tide's brand system, as the supporting colour.
Real palettes that use #183c91
Tints & shades
Harmonies
Contrast
| #183c91 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.03:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.09:1 | 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 #183c91 as the background.
Brands using this color
Palettes built around it
Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Sapphire & Gold
Open in tool →Deep sapphire and gold with a teal — old-money jewel tones on an ivory ground; heraldic without a crest.
Fonts for this mood
#183c91 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #183c91
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 #183c91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/183c91-9ca3c4-df6e4e-211f2d-e9eff1?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