Color
#1f27bd
#1f27bdrgb(31, 39, 189)hsl(237, 72%, 43%)oklch(0.4 0.224 268.6)Colors that go with #1f27bd
Charcoal, Steel Blue and Cornflower 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 #1f27bd: softer than #000 and cool enough to feel like part of the same palette.
Steel Blue #4682b4
analogousshippedSteel Blue is #1f27bd's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #1f27bd: 6 real palettes, including Blue Mono and Qualcomm's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #1f27bd in 6 real palettes, including Behance's brand system and Dunkin''s brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #1f27bd: 8 real palettes, including Unilever's brand system and Intel's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #1f27bd: 6 real palettes, including Absolut's brand system and Cargo's brand system, as the supporting colour.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #1f27bd in 4 real palettes, including Fintech Trust and Spotify's brand system, as the accent.
Midnight Blue #191970
shipped11 real palettes, including Blue Mono and Air France's brand system put Midnight Blue beside #1f27bd, as that palette's text colour.
Real palettes that use #1f27bd
Tints & shades
Harmonies
Contrast
| #1f27bd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.08:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.08:1 | 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 #1f27bd 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
#1f27bd 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 #1f27bd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/1f27bd-9f9cc4-df924e-251f2d-e9edf1?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