# #137cd8

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

## Values

- Hex: `#137cd8`
- RGB: rgb(19, 124, 216)
- HSL: hsl(208, 84%, 46%)
- OKLCH: oklch(0.581 0.165 251.7)
- Relative luminance: 0.1951
- Nearest named color: Haddock’s Sweater (#277aba, Δ 4.58) — https://brandsweets.com/colors/haddocks-sweater
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/137cd8

## Tints & shades

- Tints (toward white): #1989eb, #3195ed, #4da4ef, #64b0f2, #7cbcf4, #93c8f6, #abd4f8, #c7e2fa, #deeefc, #f6fafe
- Shades (toward black): #1171c5, #1066b2, #0d599b, #0c4e88, #0a4375, #093963, #072e50, #052038, #031626, #020b13

## Harmonies

- Complementary: #d86f13
- Analogous: #13d8d1, #1319d8
- Triadic: #d8137c, #7cd813
- Split-complementary: #d81319, #d8d113
- Tetradic: #d113d8, #d86f13, #19d813

## Colors that go with #137cd8

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 #137cd8: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #137cd8 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com). — https://brandsweets.com/colors/crimson
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #137cd8 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Notion (https://brandsweets.com/colors/brands/notion). — https://brandsweets.com/colors/copper
- **Amber** #ffbf00 [pool] — Amber is paired with #137cd8 in 11 real palettes, including Walmart's brand system and Wired's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Wired (https://brandsweets.com/colors/brands/wired-com), NBA (https://brandsweets.com/colors/brands/nba-com), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Readymag's brand system and BBC's brand system put Blue beside #137cd8, as the supporting colour. Seen in: Readymag (https://brandsweets.com/colors/brands/readymag-com), BBC (https://brandsweets.com/colors/brands/bbc-com), EA (https://brandsweets.com/colors/brands/ea-com), Cargo (https://brandsweets.com/colors/brands/cargo-site). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #137cd8: 12 real palettes, including Carrefour's brand system and General Mills's brand system, as the accent. Seen in: Carrefour (https://brandsweets.com/colors/brands/carrefour-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com), Hershey's (https://brandsweets.com/colors/brands/hersheys-com). — https://brandsweets.com/colors/cobalt
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #137cd8: 8 real palettes, including Astro's brand system and Patreon's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Patreon (https://brandsweets.com/colors/brands/patreon-com), Telegram (https://brandsweets.com/colors/brands/telegram-org), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #137cd8: 6 real palettes, including Honda's brand system and AT&T's brand system, as the supporting colour. Seen in: Honda (https://brandsweets.com/colors/brands/honda-com), AT&T (https://brandsweets.com/colors/brands/att-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 4.28:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #1276ce (4.66:1); AA: background → #0d0d0d (4.54:1); AAA: text → #0d599b (7.19:1)
- On black (#000000): 4.9:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #3a9aee (7.04:1)

## Brands using this color

- **Xbox** — accent #0078d4 (Δ 1.352) — https://brandsweets.com/colors/brands/xbox-com
- **Motorola** — secondary #0e77da (Δ 1.461) — https://brandsweets.com/colors/brands/motorola-com
- **Chevrolet** — secondary #0077d9 (Δ 1.529) — https://brandsweets.com/colors/brands/chevrolet-com
- **Disney** — primary #0077da (Δ 1.563) — https://brandsweets.com/colors/brands/disney-com

## 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/137cd8-9cadc4-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: "#137cd8" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.