Color Shade and Tint Generator

Generate paired white-tint/black-shade RGB ladders at actual caller fractions in gamma-encoded sRGB; unlike scalar blend this constructs two coordinated bounded schedules. Not pigment mixing or perceptually uniform steps.

Description

Tint and shade ladders mix toward white and black respectively.

Tint and shade ladders mix toward white and black respectively. The declared method operates on encoded sRGB.^[1]

Enter normalized RGB and 1–128 fractions 0–1. Return paired tint/shade RGB rows in input order.

When to use Color Shade and Tint Generator

Use Color Shade and Tint Generator when you need to evaluate the supplied records under the calculation and evidence rules below. No pigment model or perceptually uniform steps are supplied.

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 Color Shade and Tint Generator 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 baseRgb, mixFractions using the field table and calculation rules, then run the tool.
Read tintRgbRows, shadeRgbRows. 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
baseRgb	Base rgb	list of number	Required
mixFractions	Mix fractions	list of number	Required

Enter normalized RGB and 1–128 fractions 0–1. Return paired tint/shade RGB rows in input order.

tint=base(1−fraction)+fraction; shade=base(1−fraction)

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

Output field	Meaning	Value type
tintRgbRows	Tint rgb rows	list of list of number
shadeRgbRows	Shade rgb rows	list of list of number

json

{
  "input": {
    "baseRgb": [
      1,
      0,
      0
    ],
    "mixFractions": [
      0,
      0.5,
      1
    ]
  },
  "output": {
    "tintRgbRows": [
      [
        1,
        0,
        0
      ],
      [
        1,
        0.5,
        0.5
      ],
      [
        1,
        1,
        1
      ]
    ],
    "shadeRgbRows": [
      [
        1,
        0,
        0
      ],
      [
        0.5,
        0,
        0
      ],
      [
        0,
        0,
        0
      ]
    ]
  }
}

Limitations and assumptions

No pigment model or perceptually uniform steps are supplied.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. 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 Monochrome Lightness Steps Generator: An HSL monochrome ramp keeps hue and saturation fixed while varying lightness. Endpoint order may ascend or descend.

References

Color Shade and Tint Generator — 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.
Monochrome Lightness Steps Generator
An HSL monochrome ramp keeps hue and saturation fixed while varying lightness. Endpoint order may ascend or descend.