# #152d56

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

## Values

- Hex: `#152d56`
- RGB: rgb(21, 45, 86)
- HSL: hsl(218, 61%, 21%)
- OKLCH: oklch(0.302 0.08 260.4)
- Relative luminance: 0.0271
- Nearest named color: Midnight Ocean (#0f2d4d, Δ 1.799) — https://brandsweets.com/colors/midnight-ocean
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/152d56

## Tints & shades

- Tints (toward white): #1d3e77, #244d94, #2c5eb5, #3a71cf, #5b88d7, #789dde, #98b5e6, #b9cdee, #d6e1f5, #f7f9fd
- Shades (toward black): #13294e, #12264a, #102242, #0e1e39, #0d1c35, #0b172d, #091325, #070f1d, #060d19, #040910

## Harmonies

- Complementary: #563e15
- Analogous: #154e56, #1e1556
- Triadic: #56152d, #2d5615
- Split-complementary: #561e15, #4e5615
- Tetradic: #56154e, #563e15, #15561e

## Colors that go with #152d56

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

- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #152d56 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Mushroom (https://brandsweets.com/palettes/neutral#mushroom). — https://brandsweets.com/colors/seagreen
- **Slate Blue** #6a5acd [harmony, pool: analogous] — Slate Blue is #152d56's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), GitLab (https://brandsweets.com/colors/brands/gitlab), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas). — https://brandsweets.com/colors/slateblue
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #152d56's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Discover (https://brandsweets.com/colors/brands/discover-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/steelblue
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #152d56 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #152d56 in 7 real palettes, including Beach Hut and Southwest Airlines's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 17 real palettes, including Monzo's brand system and Sketch's brand system put Blue beside #152d56, as the accent. Seen in: Monzo (https://brandsweets.com/colors/brands/monzo-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 4 real palettes, including Rain Garden and Blush put Blush Pink beside #152d56, as the accent. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Blush (https://brandsweets.com/palettes/light#blush), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding). — https://brandsweets.com/colors/blush-pink
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #152d56: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 13.62:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.54:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3e74d0 (4.61:1); AA: background → #969696 (4.61:1); AAA: text → #6f97dc (7.14:1); AAA: background → #bababa (7.02:1)

## Brands using this color

- **American Eagle** — secondary #182c52 (Δ 0.768) — https://brandsweets.com/colors/brands/ae-com
- **CeraVe** — accent #003057 (Δ 1.643) — https://brandsweets.com/colors/brands/cerave-com
- **Panasonic** — secondary #0f315f (Δ 1.864) — https://brandsweets.com/colors/brands/panasonic-com

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/152d56-9ca6c4-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: "#152d56" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.