Heraldic Tincture Metal Rule Check

Basic conventional heraldic tincture same-metal/same-colour screen with independently verified exceptions and fur distinct; not heraldic validity or visual contrast. Explicit declared color space/reference and caller applicability; not spectral equivalence, pigment mixing, press readiness or accessibility certification.

Description

Heraldic contrast conventions distinguish metals, colours and furs.

Heraldic contrast conventions distinguish metals, colours and furs.^[1]

A bounded class comparison needs an independently verified exception context rather than interpreting a complete coat of arms. Use Heraldic Tincture Metal Rule Check to evaluate the supplied inputs under the model explained below.

When to use Heraldic Tincture Metal Rule Check

Use Heraldic Tincture Metal Rule Check to evaluate the supplied inputs under the model explained below. Establish the units, measurement scope and model assumptions before entering values.

How to use Heraldic Tincture Metal Rule Check and understand its results

Establish the units, measurement scope and model assumptions before entering values.
Enter Field tincture class, Charge tincture class, Caller verified exception using the field table and validation rules below, then run the tool.
Read Ordinary contrast rule review; interpret the units, signs, ordering and unknown-value placeholders described below.
Correct reported input errors and rerun. Apply successful results according to their specific meanings and check the assumptions before using them in a decision.

Input field	Meaning	Value type	Requirement
fieldTinctureClass	Field tincture class	string	Required; constraints below
chargeTinctureClass	Charge tincture class	string	Required; constraints below
callerVerifiedException	Caller verified exception	boolean	Required; constraints below

Enter field and charge classes as exactly metal, colour or fur and a verified-exception boolean. Review is true only when the two classes are equal, neither is fur and no exception is supplied. Different classes, furs and a verified exception return false. False means this limited check does not request review, not that the complete arms comply with every heraldic rule.

review = !verifiedException and fieldClass==chargeClass and fieldClass!=fur

Use the field order, units and branch conditions described above.

Output field	Meaning	Value type
ordinaryContrastRuleReview	Ordinary contrast rule review	boolean

json

{
  "input": {
    "fieldTinctureClass": "metal",
    "chargeTinctureClass": "metal",
    "callerVerifiedException": false
  },
  "output": {
    "ordinaryContrastRuleReview": true
  }
}

Limitations and assumptions

A bounded class comparison needs an independently verified exception context rather than interpreting a complete coat of arms. Apply the exact scope and assumptions explained above.

All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are explained above; extremely large inputs or outputs can also be rejected. Input errors differ from successful false results, empty match lists and unknown-evidence placeholders.

Alternative or Complementary methods

Use Bootstrap Theme Color Nearest Lookup for a related task: Bootstrap theme matching needs the supplied theme edition and swatch coordinates.

Use Semantic Status Hue Standard Lookup for a related task: Status colors communicate meanings under a particular product or design convention.

References

Heraldic Tincture Metal Rule Check — tool.io

Similar or alternative tools

Bootstrap Theme Color Nearest Lookup
Bootstrap theme matching needs the supplied theme edition and swatch coordinates.
Semantic Status Hue Standard Lookup
Status colors communicate meanings under a particular product or design convention.