Graph Lr Subgraph Data Flow A[Open Ehr System] > B{Clinical Data} B > C{Data Transformation Layer} C > D{Postgres Database} End D > E[Fhir Server] E > F{C Dex Fhir Resources} Subgraph Client Interaction G[Api Gateway] > H{Payer/Provider Clients} H > G{Request (C Dex Information)} G > I{Authorization Server} [Dashed] I > G{Authorization Response} [Dashed] G > E{Request (Fhir Api)} E > G{Response (C Dex Resources)} G > H End
graph LR subgraph Data Flow A[OpenEHR System] --> B{Clinical Data} B --> C{Data Transformation Layer} C --> D{Postgres Database} end D --> E[FHIR Server] E --> F{CDex FHIR Resources} subgraph Client Interaction G[API Gateway] --> H{Payer/Provider Clients} H --> G{Request (CDex Information)} G --> I{Authorization Server} [dashed] I --> G{Authorization Response} [dashed] G --> E{Request (FHIR API)} E --> G{Response (CDex Resources)} G --> H end
About This Color Palette
Healthcare Data Flow
1. Blue -
#3498db
- Represents data flow between OpenEHR System, Clinical Data, Data Transformation Layer, and Postgres Database.
2. Green -
#2ecc71
- Represents data flow between Postgres Database and FHIR Server.
3. Purple -
#9b59b6
- Represents data flow between FHIR Server and CDex FHIR Resources.
4. Red -
#e74c3c
- Represents client interaction between API Gateway, Payer/Provider Clients, Authorization Server, and FHIR API.
5. Grey -
#95a5a6
- Represents dashed lines for Authorization Server and Authorization Response.
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The Future of Color
Color trends are evolving rapidly. We are seeing a shift towards more vibrant, expressive palettes that capture attention and evoke emotion.
"Color is a power which directly influences the soul."
Why it matters
Choosing the right color palette is crucial for brand identity. It communicates values without words and creates an instant connection with the audience.
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Composition #01
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Simulate how your palette appears to users with different types of color vision deficiencies. Approximately 8% of men and 0.5% of women have some form of color blindness.
Original Palette
Protanopia
Red-blind (approx. 1% of men)
Deuteranopia
Green-blind (approx. 1% of men)
Tritanopia
Blue-blind (very rare)
Achromatopsia
Total color blindness (monochromacy)
Shades & Tints
Explore lighter variations (tints) and darker variations (shades) of each color. Click any color to copy its hex code.
Blue
#3498db
Tints
(Mixed with white - lighter)Original
Shades
(Mixed with black - darker)Green
#2ecc71
Tints
(Mixed with white - lighter)Original
Shades
(Mixed with black - darker)Purple
#9b59b6
Tints
(Mixed with white - lighter)Original
Shades
(Mixed with black - darker)Red
#e74c3c
Tints
(Mixed with white - lighter)Original
Shades
(Mixed with black - darker)Grey
#95a5a6
Tints
(Mixed with white - lighter)Original
Shades
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Understanding Contrast Ratios
4.5:1 (Level AA)
The minimum required contrast ratio for normal text to be considered accessible under WCAG 2.1 Level AA. For large text, the requirement is lower at 3.0:1. This is the standard target for most web content.
7.0:1 (Level AAA)
The "gold standard" for accessibility. Achieving a 7.0:1 ratio ensures that your text is readable even for people with significant vision loss. For large text, the AAA requirement is 4.5:1.
What counts as Large Text?
WCAG defines large text as anything 18pt (approx. 24px) or larger, or 14pt (approx. 18.66px) and bold or larger. Most headings fall into this category.
Why it matters
Proper contrast is essential for everyone, but especially for people with color blindness, low vision, or those viewing screens in bright sunlight.