Color
#155eac
#155eacrgb(21, 94, 172)hsl(211, 78%, 38%)oklch(0.483 0.142 254.3)Colors that go with #155eac
Crimson, Medium Sea Green and Midnight 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.
Crimson #dc143c
triadicshippedCrimson completes a triad with #155eac — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #155eac in 4 real palettes, including Fintech Trust and Console Light, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #155eac in 5 real palettes, including Open House and Fintech Trust, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Slate Gray #708090
shippedSlate Gray is paired with #155eac in 5 real palettes, including Ink & Paper and Campus, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #155eac in 7 real palettes, including Dusk and GitHub's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Sienna #a0522d
complementarySienna sits directly opposite #155eac on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cadet Blue #5f9ea0
shippedCadet Blue is paired with #155eac in 3 real palettes, including Open House and Dusk, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #155eac: softer than #000 and cool enough to feel like part of the same palette.
Real palettes that use #155eac
Tints & shades
Harmonies
Contrast
| #155eac as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.5:1 | pass | pass | fail |
|
Aaon black | 3.23:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #155eac as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#155eac reads as cool, vivid, technical. 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 #155eac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/155eac-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