Color
#18cbe7
#18cbe7rgb(24, 203, 231)hsl(188, 81%, 50%)oklch(0.774 0.132 212.5)Colors that go with #18cbe7
Charcoal, Dark Orange and Dodger 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 #18cbe7: softer than #000 and cool enough to feel like part of the same palette.
Dark Orange #ff8c00
split-complementshippedDark Orange is a split-complement of #18cbe7: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #18cbe7: 4 real palettes, including Patreon's brand system and Figma's brand system, as the accent.
Midnight Blue #191970
shipped7 real palettes, including Confluent's brand system and Telehealth put Midnight Blue beside #18cbe7, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #18cbe7 in 7 real palettes, including 1password's brand system and Confluent's brand system, as the accent.
Steel Blue #4682b4
shippedDesigners have shipped Steel Blue with #18cbe7: 4 real palettes, including Deep Water and Astro's brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #18cbe7 in 11 real palettes, including Crayon Box and Astro's brand system, as the text colour against it.
Tomato #ff6347
shipped4 real palettes, including Crayon Box and Raycast's brand system put Tomato beside #18cbe7, as the lead colour.
Real palettes that use #18cbe7
Tints & shades
Harmonies
Contrast
| #18cbe7 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.96:1 | fail | fail | fail | |
Aaon black | 10.74:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18cbe7 as the background.
Brands using this color
Fonts for this mood
#18cbe7 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 #18cbe7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/18cbe7-a2b7be-df4e81-1f252d-e9f1ee?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