coconala DESIGN.md

Design System Inspiration of coconala

Overview

Visual Theme & Atmosphere

coconala (ココナラ) is a skills marketplace where individuals sell services — illustration, design, web work, video, marketing, consulting, fortune-telling, counselling and lessons. It is run by 株式会社ココナラ (coconala Inc.), founded on 4 January 2012 and based in Sakuragaokacho, Shibuya, Tokyo. The company's stated vision is 「一人ひとりが『自分のストーリー』を生きていく世の中をつくる」 — a world where each person lives their own story — by making individual knowledge, skills and experience visible and connecting them to whoever needs them.

The site is light and practical: white and cool grey surfaces #f3f4f5 and #e7eaeb, a blue-grey ink #202a2e, and coconala's green #00a38d for sign-up and actions. The logo is multicoloured; the interface keeps to green.

What makes it worth reading:

• A full named palette. Nineteen colour ramps as custom properties — --gray-*, --green-*, --blue-*, --lightPurple-*, --warmPink-*, --violet-* and more — plus --_<colour>-opacityN alpha variants.
• States from the ramp. The sign-up button steps --green-400 → --green-600 → --green-800 on hover and press; the outline button uses the green's alpha variants.
• A blue-grey neutral ramp. Its greys lean blue (#202a2e, #4d656d, #ced4d6) rather than pure grey.

Primary tasks

• Search and browse services by category.
• Sign up or log in.

Brand Narrative

coconala's vision is for each person to live their own story, made practical as a marketplace for individual skills. The interface is a calm frame of blue-greys around one green action colour; the colour comes from the sellers' work and the promotions.

Principles

• One action colour. Green, stepped along its own ramp.
• Neutrals with a hue. Blue-leaning greys.
• A palette as infrastructure. Nineteen named ramps with alpha variants.

Personas

Not researched. No persona claim is made from a UI capture.

Colors

Measured with getComputedStyle on coconala.com: 336 root custom properties, of which Tailwind's --tw-* (51) and Swiper's variable are excluded. The rest are first-party colour ramps and alpha variants.

Green (brand and actions)

• Brand (#00a38d) — --green-400; the sign-up fill and outline button.
• Brand hover (#00866e) — --green-600 · press (#006650) — --green-800.
• Green 200 (#7ac9bb) — --green-200.

Ink and surfaces

• Foreground (#202a2e) — --gray-900; page text.
• Text secondary (#4d656d) — --gray-600; the search category label.
• Label (#333333) — category tile labels.
• Canvas (#ffffff) · Surface (#f3f4f5, --gray-25) · Surface strong (#e7eaeb, --gray-50).
• Border (#ced4d6) — --gray-100; the carousel buttons' border.

Other ramps

Link #0977e5 (--blue-700, the tile anchors' colour) · Blue 500 #0098ff · Orange 500 #ff9900 · Red 500 #ff3b30.

Typography

Font family

The system Japanese stack: "Hiragino Kaku Gothic ProN", "Hiragino Kaku Gothic Pro", メイリオ, Meiryo, "Helvetica Neue", Helvetica, Arial, sans-serif. No brand text face loads; the only web font is an icon font.

Scale

Body and links 14px/400; tile labels 14px/300; header buttons 11px/600.

Layout

• A header with a combined category-and-keyword search, a second navigation row, an orange coupon banner, a three-up promotional carousel and a grid of category tiles.

Responsive Behavior

Not measured. Desktop 1440×1000 only.

Elevation & Depth

Flat; the carousel's arrow buttons sit on white with a #ced4d6 border.

Motion & Easing

Not measured.

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Tier 1 sources: https://coconala.com/ (live homepage — 336 root custom properties read via getComputedStyle, Tailwind and Swiper excluded; three components measured at rest, hover, pressed and focus, the header inside nested shadow roots, captured 2026-09-26); https://coconala.com/zz-this-does-not-exist (nonsense-path control — HTTP 404, read 2026-09-26); https://coconala.co.jp/company/ (会社概要 — 株式会社ココナラ, coconala Inc., founded 2012-01-04, Sakuragaokacho, Shibuya, Tokyo, read 2026-09-26); https://coconala.co.jp/company/message/ (代表挨拶 — the vision 「一人ひとりが『自分のストーリー』を生きていく世の中をつくる」, read 2026-09-26)

Components

Measured on the home page. The header lives inside web components (before-login-header) with buttons in nested shadow roots; focus was read under a real Tab key, and a hover counted only when :hover matched.

• Log in — ログイン: transparent, green #00a38d 11px/600, a 50% green border, 4px, 32px. Hover tints the fill rgba(0,163,141,0.04); press and focus 0.12.
• Sign up — 会員登録: #00a38d fill, white, 4px, 32px. Hover #00866e, press and focus #006650, the border following the fill.
• Category tile — one of 19 (デザイン制作 measured): an icon over a #333333 14px/300 label, 108px tall. Hover fades the tile to 70% opacity.

Radius

4px on header buttons, 6px on the search field, 5–8px on the bottom sign-up bar buttons.

States

Hover: the sign-up fill darkens to #00866e; the log-in button tints 4%; tiles fade to 70%. Press: #006650 and a 12% tint. Focus: the pressed fill plus the browser's ring.

Do's and Don'ts

Do

• Use #00a38d for actions, with #00866e hover and #006650 press.
• Pull neutrals from the blue-grey ramp (#202a2e, #4d656d, #ced4d6).
• Tint outline buttons with the green's alpha variants on hover and press.

Don't

• Don't use the logo's other colours for interface actions; actions are green.
• Don't use pure grey neutrals.
• Don't count Tailwind variables as coconala tokens.

Voice & Tone

Not assessed as authored voice.

Agent Prompt Guide

Quick Color Reference

#00a38d green · #00866e hover · #006650 press · #202a2e ink · #4d656d secondary · #f3f4f5 / #e7eaeb surfaces · #ced4d6 border · #0977e5 link blue

Example Component Prompts

• "A 32px green #00a38d button, white 11px/600, 4px radius; hover #00866e, press #006650."
• "An outline twin: green label and 50% green border, filling to 4% green on hover and 12% on press."

Governance

Known Gaps

• Contrast, button-signup. Text #ffffff on #00a38d measures 3.17:1, below the WCAG AA 4.5:1 minimum for normal-size text. Recorded as measured, not adjusted.
• Contrast, tile-category. Text #333333 on #00000000 measures 1.66:1, below the WCAG AA 4.5:1 minimum for normal-size text. Recorded as measured, not adjusted.