Tide Pool
Open in tool →Sea-green and slate with a coral — a literal tide pool: two cool tones, one warm creature.
Color
#31354e
#31354e
hex
#31354ergb
rgb(49, 53, 78)hsl
hsl(232, 23%, 25%)oklch
oklch(0.337 0.044 276.7)Closest name: Call It a Night (#42364c)Relative luminance 0.0375
Colors that go with #31354e
Dark Olive Green, Sea Green and Steel 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.
Dark Olive Green #556b2f
complementaryshippedDark Olive Green sits directly opposite #31354e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #31354e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
analogousshippedSteel Blue is #31354e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped10 real palettes, including Dunkin''s brand system and Headspace's brand system put Blue beside #31354e, as the supporting colour.
Blush Pink #e8b4b8
shipped5 real palettes, including Garden Wedding and Rain Garden put Blush Pink beside #31354e, as the supporting colour.
Burlywood #deb887
shippedBurlywood is paired with #31354e in 5 real palettes, including Coastal and Polaroid, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #31354e: 8 real palettes, including Open House and Coastal, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #31354e: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #31354e
Tints & shades
Harmonies
Contrast
| #31354e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 12:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.75:1 | 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 #31354e 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
Fonts for this mood
#31354e reads as cool, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #31354e
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 #31354e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/31354e-9c9dc4-df864e-231f2d-e9eef1?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