# #4b99dd

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#4b99dd`
- RGB: rgb(75, 153, 221)
- HSL: hsl(208, 68%, 58%)
- OKLCH: oklch(0.664 0.127 247.4)
- Relative luminance: 0.295
- Nearest named color: Blue Bay (#619ad6, Δ 2.234) — https://brandsweets.com/colors/blue-bay
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/4b99dd

## Tints & shades

- Tints (toward white): #5ca2e0, #6dace3, #7eb6e7, #90c0ea, #a1c9ed, #b2d3f0, #c3ddf4, #d4e7f7, #e5f0fa, #f6fafd
- Shades (toward black): #368dd9, #267dc9, #2270b4, #1d609a, #195385, #15456f, #103556, #0c2840, #071827, #030b11

## Harmonies

- Complementary: #dd8f4b
- Analogous: #4bddd8, #4b50dd
- Triadic: #dd4b99, #99dd4b
- Split-complementary: #dd4b50, #ddd84b
- Tetradic: #d84bdd, #dd8f4b, #50dd4b

## Colors that go with #4b99dd

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #4b99dd: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Lido (https://brandsweets.com/palettes/vivid#lido), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue). — https://brandsweets.com/colors/charcoal
- **Peru** #cd853f [harmony, pool: complementary] — Peru sits directly opposite #4b99dd on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Guinness (https://brandsweets.com/colors/brands/guinness-com). — https://brandsweets.com/colors/peru
- **Amber** #ffbf00 [pool] — Amber is paired with #4b99dd in 9 real palettes, including Heatwave and Google's brand system, as the supporting colour. Seen in: Heatwave (https://brandsweets.com/palettes/warm#heatwave), Google (https://brandsweets.com/colors/brands/google-com), NBA (https://brandsweets.com/colors/brands/nba-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 9 real palettes, including Qualcomm's brand system and Unity's brand system put Blue beside #4b99dd, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Unity (https://brandsweets.com/colors/brands/unity-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #4b99dd: 4 real palettes, including Blue Mono and Hershey's's brand system, as the lead colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Glacier (https://brandsweets.com/palettes/cool#glacier), General Mills (https://brandsweets.com/colors/brands/generalmills-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #4b99dd in 4 real palettes, including NASCAR's brand system and JBL's brand system, as the supporting colour. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), JBL (https://brandsweets.com/colors/brands/jbl-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Riot Games (https://brandsweets.com/colors/brands/riotgames-com). — https://brandsweets.com/colors/crimson
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #4b99dd in 4 real palettes, including Elastic's brand system and Learning App, as the lead colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Learning App (https://brandsweets.com/palettes/playful#learning-app), Playground (https://brandsweets.com/palettes/bold#playground), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/darkorange
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #4b99dd: 7 real palettes, including Telegram's brand system and Figma's brand system, as the lead colour. Seen in: Telegram (https://brandsweets.com/colors/brands/telegram-org), Figma (https://brandsweets.com/colors/brands/figma), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com), Remix (https://brandsweets.com/colors/brands/remix-run). — https://brandsweets.com/colors/deepskyblue

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 3.04:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2578c1 (4.63:1); AA: background → #2b2b2b (4.65:1); AAA: text → #1c5b92 (7.09:1)
- On black (#000000): 6.9:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #4f9bde (7.08:1)

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/4b99dd-9cadc4-df4e51-1f212d-e9f1f1?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#4b99dd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.