# #424bcd

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

## Values

- Hex: `#424bcd`
- RGB: rgb(66, 75, 205)
- HSL: hsl(236, 58%, 53%)
- OKLCH: oklch(0.489 0.198 273.4)
- Relative luminance: 0.106
- Nearest named color: Blurple (#5539cc, Δ 4.145) — https://brandsweets.com/colors/blurple
- Moods: cool, modern
- Page: https://brandsweets.com/colors/424bcd

## Tints & shades

- Tints (toward white): #565ed2, #666dd6, #7a81dc, #8a90e0, #9ea3e5, #aeb2ea, #c3c6ef, #d3d5f3, #e7e8f9, #f7f7fd
- Shades (toward black): #333dc1, #2e37ad, #293099, #232a85, #1f2575, #1a1e61, #14184d, #0f1238, #0a0b24, #040510

## Harmonies

- Complementary: #cdc342
- Analogous: #4290cd, #7e42cd
- Triadic: #cd424b, #4bcd42
- Split-complementary: #cd7e42, #90cd42
- Tetradic: #cd4290, #cdc342, #42cd7e

## Colors that go with #424bcd

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 #424bcd: 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), HP (https://brandsweets.com/colors/brands/hp-com), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #424bcd — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #424bcd in 6 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), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 12 real palettes, including Zillow's brand system and Pixar's brand system put Blue beside #424bcd, as the lead colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Signal (https://brandsweets.com/colors/brands/signal-org). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #424bcd: 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), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #424bcd in 17 real palettes, including Netflix's brand system and Ulta Beauty's brand system, as the lead colour. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com), Chase (https://brandsweets.com/colors/brands/chase-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/crimson
- **Dark Orchid** #9932cc [harmony, pool: analogous] — Dark Orchid is #424bcd's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Linkedin (https://brandsweets.com/colors/brands/linkedin-com). — https://brandsweets.com/colors/darkorchid
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #424bcd: 6 real palettes, including Kraken's brand system and Calm's brand system, as the accent. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Calm (https://brandsweets.com/colors/brands/calm-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 6.73:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #3e47cc (7.05:1)
- On black (#000000): 3.12:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #626ad5 (4.54:1); AA: background → #d4d4d4 (4.54:1); AAA: text → #8a90e0 (7.15:1)

## Brands using this color

- **Brave** — secondary #434fcf (Δ 0.974) — https://brandsweets.com/colors/brands/brave-com

## 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/424bcd-9e9cc4-df8f4e-241f2d-e9eef1?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: "#424bcd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.