Color
#42bda8
#42bda8rgb(66, 189, 168)hsl(170, 48%, 50%)oklch(0.725 0.112 179.4)Colors that go with #42bda8
Charcoal, Hot Pink and 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 #42bda8: softer than #000 and cool enough to feel like part of the same palette.
Hot Pink #ff69b4
complementaryshippedHot Pink sits directly opposite #42bda8 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped4 real palettes, including Canva's brand system and Unity's brand system put Blue beside #42bda8, as the accent.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #42bda8: 4 real palettes, including Canva's brand system and Terminal, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #42bda8 in 4 real palettes, including Riot Games's brand system and DuckDuckGo's brand system, as the supporting colour.
Midnight Blue #191970
shipped7 real palettes, including Ford's brand system and Confluent's brand system put Midnight Blue beside #42bda8, as the lead colour.
Mustard Yellow #ffdb58
shipped5 real palettes, including Crayon Box and Fresh Juice put Mustard Yellow beside #42bda8, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #42bda8 in 4 real palettes, including Khan Academy's brand system and Brilliant's brand system, as the accent.
Real palettes that use #42bda8
Tints & shades
Harmonies
Contrast
| #42bda8 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.31:1 | fail | fail | fail | |
Aaon black | 9.08:1 | 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 #42bda8 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #42bda8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/42bda8-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