# #30358d

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

## Values

- Hex: `#30358d`
- RGB: rgb(48, 53, 141)
- HSL: hsl(237, 49%, 37%)
- OKLCH: oklch(0.382 0.143 274.8)
- Relative luminance: 0.051
- Nearest named color: Bluebell (#333399, Δ 2.072) — https://brandsweets.com/colors/bluebell
- Moods: cool, modern
- Page: https://brandsweets.com/colors/30358d

## Tints & shades

- Tints (toward white): #383da3, #4046ba, #545ac4, #6b70cc, #8589d5, #9c9fdd, #b3b6e5, #cacced, #e1e2f5, #f7f8fc
- Shades (toward black): #2c3081, #272b72, #232667, #1f225b, #1b1e50, #161841, #121435, #0e102a, #090a1b, #05060f

## Harmonies

- Complementary: #8d8830
- Analogous: #30638d, #5a308d
- Triadic: #8d3035, #358d30
- Split-complementary: #8d5a30, #638d30
- Tetradic: #8d3063, #8d8830, #308d5a

## Colors that go with #30358d

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 #30358d: softer than #000 and cool enough to feel like part of the same palette. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Boeing (https://brandsweets.com/colors/brands/boeing-com), CeraVe (https://brandsweets.com/colors/brands/cerave-com). — https://brandsweets.com/colors/charcoal
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #30358d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), FedEx (https://brandsweets.com/colors/brands/fedex-com). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 5 real palettes, including Procter & Gamble's brand system and CVS's brand system put Blue beside #30358d, as the supporting colour. Seen in: Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Tesco (https://brandsweets.com/colors/brands/tesco-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #30358d in 11 real palettes, including Walgreens's brand system and Casper Sleep's brand system, as the lead colour. Seen in: Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #30358d: 15 real palettes, including Warbyparker's brand system and Unilever's brand system, as the accent. Seen in: Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com). — https://brandsweets.com/colors/denim
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #30358d: 4 real palettes, including Nintendo's brand system and Datadog's brand system, as the accent. Seen in: Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Datadog (https://brandsweets.com/colors/brands/datadoghq-com), MLB (https://brandsweets.com/colors/brands/mlb-com), 3M (https://brandsweets.com/colors/brands/3m-com). — https://brandsweets.com/colors/firebrick
- **Red** #ff0000 [pool] — Red is paired with #30358d in 4 real palettes, including Walgreens's brand system and Hyundai's brand system, as the supporting colour. Seen in: Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Hyundai (https://brandsweets.com/colors/brands/hyundaiusa-com), 3M (https://brandsweets.com/colors/brands/3m-com), Twitch (https://brandsweets.com/colors/brands/twitch-tv). — https://brandsweets.com/colors/red
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #30358d in 11 real palettes, including Nokia's brand system and Nivea's brand system, as the supporting colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), Nivea (https://brandsweets.com/colors/brands/nivea-com), Discord (https://brandsweets.com/colors/brands/discord), Carrefour (https://brandsweets.com/colors/brands/carrefour-com). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 10.4:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.02:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #676ccb (4.58:1); AA: background → #ababab (4.53:1); AAA: text → #8d91d8 (7.17:1); AAA: background → #d4d4d4 (7.02:1)

## Fonts for this mood

- 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/30358d-9f9cc4-df924e-251f2d-e9edf1?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: "#30358d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.