Color
#00458f
#00458frgb(0, 69, 143)hsl(211, 100%, 28%)oklch(0.4 0.137 256)Colors that go with #00458f
Charcoal, Crimson and Steel 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 #00458f: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #00458f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
analogousshippedSteel Blue is #00458f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped7 real palettes, including CVS's brand system and Procter & Gamble's brand system put Blue beside #00458f, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #00458f: 17 real palettes, including Unilever's brand system and Warbyparker's brand system, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #00458f: 5 real palettes, including Nintendo's brand system and MLB's brand system, as the accent.
Midnight Blue #191970
shipped19 real palettes, including Fintech Trust and First Snow put Midnight Blue beside #00458f, as that palette's text colour.
Orange Red #ff4500
shippedOrange Red is paired with #00458f in 4 real palettes, including NASA's brand system and Tide's brand system, as the supporting colour.
Real palettes that use #00458f
Tints & shades
Harmonies
Contrast
| #00458f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.34:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.25:1 | 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 #00458f as the background.
Brands using this color
Fonts for this mood
#00458f 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 #00458f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/00458f-9cabc4-df534e-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