# #1558cb

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

## Values

- Hex: `#1558cb`
- RGB: rgb(21, 88, 203)
- HSL: hsl(218, 81%, 44%)
- OKLCH: oklch(0.494 0.19 260.9)
- Relative luminance: 0.1145
- Nearest named color: Denim (#1560bd, Δ 3.106) — https://brandsweets.com/colors/denim
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/1558cb

## Tints & shades

- Tints (toward white): #1862e2, #2f73e9, #4683ec, #6296ef, #79a5f1, #90b5f3, #acc7f6, #c3d7f9, #dfe9fc, #f6f9fe
- Shades (toward black): #1350b9, #1148a6, #104094, #0e3881, #0c306f, #0a285c, #08204a, #061837, #041025, #020812

## Harmonies

- Complementary: #cb8815
- Analogous: #15b3cb, #2e15cb
- Triadic: #cb1558, #58cb15
- Split-complementary: #cb2e15, #b3cb15
- Tetradic: #cb15b3, #cb8815, #15cb2e

## Colors that go with #1558cb

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 #1558cb: softer than #000 and cool enough to feel like part of the same palette. Seen in: UEFA (https://brandsweets.com/colors/brands/uefa-com), Campus (https://brandsweets.com/palettes/friendly#campus), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #1558cb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #1558cb in 8 real palettes, including Walmart's brand system and Warner Bros.'s brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 13 real palettes, including Pixar's brand system and Zillow's brand system put Blue beside #1558cb, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Activision (https://brandsweets.com/colors/brands/activision-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #1558cb: 8 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the supporting colour. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), NBA (https://brandsweets.com/colors/brands/nba-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #1558cb: 7 real palettes, including Venmo's brand system and Astro's brand system, as the supporting colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Astro (https://brandsweets.com/colors/brands/astro-build), Elastic (https://brandsweets.com/colors/brands/elastic-co), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #1558cb: 7 real palettes, including Coursera's brand system and Apple's brand system, as the supporting colour. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), Apple (https://brandsweets.com/colors/brands/apple-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), ASUS (https://brandsweets.com/colors/brands/asus-com). — https://brandsweets.com/colors/dodgerblue
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #1558cb: 8 real palettes, including Nissan's brand system and Campbell's's brand system, as the supporting colour. Seen in: Nissan (https://brandsweets.com/colors/brands/nissanusa-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com), MLB (https://brandsweets.com/colors/brands/mlb-com), Bose (https://brandsweets.com/colors/brands/bose-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 6.38:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1452bd (7.07:1)
- On black (#000000): 3.29:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2b70e9 (4.6:1); AA: background → #d9d9d9 (4.52:1); AAA: text → #6296ef (7.13:1)

## Brands using this color

- **ElevenLabs** — accent #0a59d2 (Δ 1.127) — https://brandsweets.com/colors/brands/elevenlabs-io
- **Coursera** — accent #0056d2 (Δ 1.388) — https://brandsweets.com/colors/brands/coursera-org
- **Gopro** — primary #0059c2 (Δ 1.613) — https://brandsweets.com/colors/brands/gopro-com
- **Nissan** — accent #005fcc (Δ 1.702) — https://brandsweets.com/colors/brands/nissanusa-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/1558cb-9ca6c4-df644e-201f2d-e9f0f1?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: "#1558cb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.