Arctic
Open in tool →Navy type on white with an ice-blue accent: crisp and corporate without going grey.
Color
#37a0eb
#37a0eb
hex
#37a0ebrgb
rgb(55, 160, 235)hsl
hsl(205, 82%, 57%)oklch
oklch(0.681 0.145 244.3)Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3195
Colors that go with #37a0eb
Charcoal, Medium Sea Green and Tomato 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 #37a0eb: softer than #000 and cool enough to feel like part of the same palette.
Medium Sea Green #3cb371
triadicshippedMedium Sea Green completes a triad with #37a0eb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Tomato #ff6347
split-complementshippedTomato is a split-complement of #37a0eb: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #37a0eb in 9 real palettes, including Salesforce's brand system and NBA's brand system, as the accent.
Blue #0000ff
shipped9 real palettes, including Unity's brand system and Qualcomm's brand system put Blue beside #37a0eb, as the supporting colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #37a0eb in 4 real palettes, including Elastic's brand system and Learning App, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #37a0eb: 9 real palettes, including Apple's brand system and Gopro's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #37a0eb in 5 real palettes, including Open House and Liquid Death's brand system, as the accent.
Real palettes that use #37a0eb
Tints & shades
Harmonies
Contrast
| #37a0eb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.84:1 | fail | fail | fail | |
Aaon black | 7.39:1 | 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 #37a0eb 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
#37a0eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #37a0eb
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 #37a0eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/37a0eb-9cafc4-df4e58-1f212d-e9f1f0?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