Color
#151f70
#151f70rgb(21, 31, 112)hsl(233, 68%, 26%)oklch(0.296 0.138 269.6)Colors that go with #151f70
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 #151f70: softer than #000 and cool enough to feel like part of the same palette.
Steel Blue #4682b4
analogousshippedSteel Blue is #151f70's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shippedBlue is paired with #151f70 in 6 real palettes, including Pepsi's brand system and Monzo's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #151f70 in 4 real palettes, including Purina Pro Plan's brand system and Blue Mono, as the accent — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #151f70 in 4 real palettes, including Nintendo's brand system and Casper Sleep's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #151f70 in 9 real palettes, including Bank of America's brand system and Hasbro's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #151f70 in 4 real palettes, including Tide's brand system and Monzo's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Powder Blue #b0e0e6
shippedPowder Blue is paired with #151f70 in 4 real palettes, including Glacier and Frost & Ember, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #151f70
Tints & shades
Harmonies
Contrast
| #151f70 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 14.37:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.46:1 | 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 #151f70 as the background.
Brands using this color
Fonts for this mood
#151f70 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 #151f70 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/151f70-9c9cc4-df884e-241f2d-e9eef1?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