Color
#237bcd
#237bcdrgb(35, 123, 205)hsl(209, 71%, 47%)oklch(0.575 0.15 251.2)Colors that go with #237bcd
Copper, Charcoal and Amber 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.
Copper #b87333
complementaryshippedCopper sits directly opposite #237bcd on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #237bcd: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #237bcd in 3 real palettes, including Lemon Squeezy's brand system and Beach Hut, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Cadet Blue #5f9ea0
shippedCadet Blue is paired with #237bcd in 3 real palettes, including Open House and Alpine, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #237bcd in 3 real palettes, including Console Light and Telehealth, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #237bcd in 3 real palettes, including Telehealth 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 #237bcd in 3 real palettes, including Slate Workspace and Studio Grey, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
triadicshippedCrimson completes a triad with #237bcd — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Real palettes that use #237bcd
Tints & shades
Harmonies
Contrast
| #237bcd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.39:1 | fail | pass | fail | |
Aaon black | 4.79:1 | pass | 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 #237bcd 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
#237bcd 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 #237bcd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/237bcd-9cacc4-df4e4e-1f212d-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