Lagoon
Open in tool →Turquoise and teal with a sand-yellow on white — shallow tropical water; the deep teal text is the reef.
Color
#45b5a2
#45b5a2
hex
#45b5a2rgb
rgb(69, 181, 162)hsl
hsl(170, 45%, 49%)oklch
oklch(0.704 0.105 179.9)Closest name: Ambrosial Oceanside (#47ae9c)Relative luminance 0.3692
Colors that go with #45b5a2
Charcoal, Cornflower Blue and Dark Olive Green 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 #45b5a2: softer than #000 and cool enough to feel like part of the same palette.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #45b5a2: 4 real palettes, including Canva's brand system and Arctic, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #45b5a2 in 4 real palettes, including Undergrowth and Forest Floor, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #45b5a2: 4 real palettes, including Open House and Peacock, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #45b5a2: 4 real palettes, including Unity's brand system and Spline's brand system, as the lead colour.
Midnight Blue #191970
shipped7 real palettes, including Ford's brand system and Fintech Trust put Midnight Blue beside #45b5a2, as the lead colour.
Mustard Yellow #ffdb58
shipped5 real palettes, including Diner and Crayon Box put Mustard Yellow beside #45b5a2, as the accent.
Pale Violet Red #db7093
complementaryPale Violet Red sits directly opposite #45b5a2 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #45b5a2
Tints & shades
Harmonies
Contrast
| #45b5a2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.5:1 | fail | fail | fail | |
Aaon black | 8.38:1 | 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 #45b5a2 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
mcpConnect your agent — build around #45b5a2
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 #45b5a2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/45b5a2-a2bebd-d459a9-1f292d-e9f1ec?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