Launch Orange
Open in tool →Orange is the rarest SaaS primary, which is exactly why it stands out on a pricing page; cyan keeps it from feeling like a hardware store.
Color
#188db4
#188db4
hex
#188db4rgb
rgb(24, 141, 180)hsl
hsl(195, 76%, 40%)oklch
oklch(0.602 0.111 227.3)Closest name: Blue Moon (#3992a8)Relative luminance 0.2254
Colors that go with #188db4
Charcoal, Crimson and Royal 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 #188db4: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
split-complementshippedCrimson is a split-complement of #188db4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Royal Blue #4169e1
analogousshippedRoyal Blue is #188db4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #188db4 in 7 real palettes, including Beach Hut and Wired's brand system, as the supporting colour.
Blue #0000ff
shipped4 real palettes, including Readymag's brand system and Qualcomm's brand system put Blue beside #188db4, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #188db4: 5 real palettes, including Hershey's's brand system and Glacier, as the supporting colour.
Copper #b87333
split-complementshippedCopper is a split-complement of #188db4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #188db4: 7 real palettes, including Telegram's brand system and Deep Water, as the lead colour.
Real palettes that use #188db4
Tints & shades
Harmonies
Contrast
| #188db4 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.81:1 | fail | pass | fail | |
Aaon black | 5.51:1 | 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 #188db4 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
#188db4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #188db4
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 #188db4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/188db4-9cb5c4-df4e70-1f242d-e9f1ef?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