Paint Parts Mix Ratio Two Colors

Scale caller paint volumetric parts to an additive-volume batch; not RGB pigment mixing, mass fractions without densities or a guarantee of finished color/volume when contraction occurs.

Description

Volumetric paint parts scale to a chosen batch size only under volume additivity.

Volumetric paint parts scale to a chosen batch size only under volume additivity. Mass ratios need densities.^[1]

Enter nonnegative parts with positive sum, nonnegative mL batch size and additivity boolean true. Return the two component volumes; false additivity is an input error.

When to use Paint Parts Mix Ratio Two Colors

Use Paint Parts Mix Ratio Two Colors when you need to evaluate the supplied records under the calculation and evidence rules below. No finished color, pigment RGB mixing or contraction-adjusted volume is predicted.

Prepare colors in the stated color space and scale. Use encoded RGB fractions, linear RGB, Lab, xy, byte values or ink percentages exactly as requested; supply caller tolerances and reference conditions.

How to use Paint Parts Mix Ratio Two Colors and understand its results

Prepare colors in the stated color space and scale. Use encoded RGB fractions, linear RGB, Lab, xy, byte values or ink percentages exactly as requested; supply caller tolerances and reference conditions.
Enter firstPaintParts, secondPaintParts, totalBatchVolumeMl, callerComponentVolumeAdditivityAssumed using the field table and calculation rules, then run the tool.
Read firstComponentVolumeMl, secondComponentVolumeMl. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
firstPaintParts	First paint parts	number	Required
secondPaintParts	Second paint parts	number	Required
totalBatchVolumeMl	Total batch volume ml	number	Required
callerComponentVolumeAdditivityAssumed	Caller component volume additivity assumed	boolean	Required

Enter nonnegative parts with positive sum, nonnegative mL batch size and additivity boolean true. Return the two component volumes; false additivity is an input error.

volume1=totalVolume×parts1/(parts1+parts2); volume2=totalVolume−volume1

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
firstComponentVolumeMl	First component volume ml	number
secondComponentVolumeMl	Second component volume ml	number

json

{
  "input": {
    "firstPaintParts": 1,
    "secondPaintParts": 3,
    "totalBatchVolumeMl": 200,
    "callerComponentVolumeAdditivityAssumed": true
  },
  "output": {
    "firstComponentVolumeMl": 50,
    "secondComponentVolumeMl": 150
  }
}

Limitations and assumptions

No finished color, pigment RGB mixing or contraction-adjusted volume is predicted.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Tones Generator Mix Gray Percent: A tone ladder mixes a base color toward a caller-selected neutral gray. Encoded-channel mixing is not pigment mixing. For a complementary task, use CMYK to HEX Print Conversion: A naive CMYK-to-RGB formula treats each process ink as a multiplicative channel reduction. Actual press conversion needs a profile.

References

Paint Parts Mix Ratio Two Colors — tool.io

Similar or alternative tools

Tones Generator Mix Gray Percent
A tone ladder mixes a base color toward a caller-selected neutral gray. Encoded-channel mixing is not pigment mixing.
CMYK to HEX Print Conversion
A naive CMYK-to-RGB formula treats each process ink as a multiplicative channel reduction. Actual press conversion needs a profile.