Tide Pool
Open in tool →Sea-green and slate with a coral — a literal tide pool: two cool tones, one warm creature.
Color
#15938b
#15938b
hex
#15938brgb
rgb(21, 147, 139)hsl
hsl(176, 75%, 33%)oklch
oklch(0.599 0.1 187.9)Closest name: Green Dynasty (#00988e)Relative luminance 0.2289
Colors that go with #15938b
Charcoal, Copper and Crimson 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 #15938b: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
triadicshippedCopper completes a triad with #15938b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #15938b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Denim #1560bd
shippedDesigners have shipped Denim with #15938b: 9 real palettes, including Peacock and Intel's brand system, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #15938b in 4 real palettes, including Sapphire & Gold and Ledger Dark, as the supporting colour.
Midnight Blue #191970
shipped9 real palettes, including Tide Pool and Ford's brand system put Midnight Blue beside #15938b, as that palette's text colour.
Orange #ffa500
shipped4 real palettes, including Campus and Graphite put Orange beside #15938b, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #15938b in 5 real palettes, including Coinbase's brand system and Slate Workspace, as the lead colour.
Tints & shades
Harmonies
Contrast
| #15938b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.76:1 | fail | pass | fail | |
Aaon black | 5.58:1 | 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 #15938b as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Peacock
Open in tool →Teal, cobalt and magenta at full chroma on white — jewel tones in daylight; the trick is a near-black text with a blue cast.
mcpConnect your agent — build around #15938b
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #15938b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/15938b-a2bdbe-d4599d-1f282d-e9f1ed?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