# #39a8d0

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

## Values

- Hex: `#39a8d0`
- RGB: rgb(57, 168, 208)
- HSL: hsl(196, 62%, 52%)
- OKLCH: oklch(0.686 0.114 226.4)
- Relative luminance: 0.3343
- Nearest named color: Cousteau (#55a9d6, Δ 2.249) — https://brandsweets.com/colors/cousteau
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/39a8d0

## Tints & shades

- Tints (toward white): #4db1d5, #5eb8d9, #73c1de, #83c9e2, #98d2e7, #acdbec, #bde2ef, #d2ebf4, #e2f2f8, #f7fbfd
- Shades (toward black): #2e9bc2, #298aae, #257d9d, #206c88, #1b5c74, #164c5f, #113b4a, #0e2e3a, #091e25, #040d11

## Harmonies

- Complementary: #d06139
- Analogous: #39d0ad, #395cd0
- Triadic: #d039a8, #a8d039
- Split-complementary: #d0395c, #d0ad39
- Tetradic: #ad39d0, #d06139, #5cd039

## Colors that go with #39a8d0

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 #39a8d0: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Blizzard (https://brandsweets.com/colors/brands/blizzard-com). — https://brandsweets.com/colors/charcoal
- **Tomato** #ff6347 [harmony, pool: split] — Tomato is a split-complement of #39a8d0: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Hermès (https://brandsweets.com/colors/brands/hermes-com), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Substack (https://brandsweets.com/colors/brands/substack-com). — https://brandsweets.com/colors/tomato
- **Terracotta** #e2725b [harmony, pool: complementary] — Terracotta sits directly opposite #39a8d0 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Alpine (https://brandsweets.com/palettes/cool#alpine), Resort (https://brandsweets.com/palettes/light#resort), Harbour (https://brandsweets.com/palettes/cool#harbour). — https://brandsweets.com/colors/terracotta
- **Amber** #ffbf00 [pool] — Amber is paired with #39a8d0 in 7 real palettes, including Salesforce's brand system and Blueprint, as the accent. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), NBA (https://brandsweets.com/colors/brands/nba-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 5 real palettes, including Canva's brand system and Warp's brand system put Blue beside #39a8d0, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Unity (https://brandsweets.com/colors/brands/unity-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #39a8d0 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), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), PayPal (https://brandsweets.com/colors/brands/paypal-com). — https://brandsweets.com/colors/darkorange
- **Denim** #1560bd [pool] — Designers have shipped Denim with #39a8d0: 7 real palettes, including Coca-Cola's brand system and Gopro's brand system, as the accent. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #39a8d0: 4 real palettes, including Venmo's brand system and Figma's brand system, as the lead colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Figma (https://brandsweets.com/colors/brands/figma), Patreon (https://brandsweets.com/colors/brands/patreon-com), Opensea (https://brandsweets.com/colors/brands/opensea-io). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 2.73:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #257d9d (4.67:1); AA: background → #333333 (4.62:1); AAA: text → #1c5f78 (7.1:1); AAA: background → #0f0f0f (7.02:1)
- On black (#000000): 7.69:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Confluent** — accent #0daccc (Δ 1.966) — https://brandsweets.com/colors/brands/confluent-io

## 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/39a8d0-9cb5c4-df4e6e-1f232d-e9f1ef?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: "#39a8d0" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.