DatumHueEnterprise v0.0.24datumhue.com
Contents

handle15 methods, 4 fields

Color

An sRGB color. Construct with datumhue.color(...); read components via .r/.g/.b/.a.

Obtained from
datumhue.color, datumhue.time.tween (in its callback), datumhue.color.rgb, datumhue.color.rgba, datumhue.color.hex, datumhue.color.hsl, datumhue.color.oklab, datumhue.color.oklch and 18 more
Accepted by
datumhue.time.tween, datumhue.material.standard, datumhue.material.unlit, datumhue.particles.emitter, datumhue.shader.new, datumhue.draw.new, datumhue.draw.text_span, datumhue.chart.scale.color and 118 more

Fields 4

FieldTypeAccessDescription
rnumberread-onlyRed channel (0..1).
gnumberread-onlyGreen channel (0..1).
bnumberread-onlyBlue channel (0..1).
anumberread-onlyAlpha channel (0..1).

Methods 15

Color:lerp

method
Color:lerp(o: Color, t: number) -> Color

Perceptual interpolation toward o by t (clamped 0..1), blended in Oklab so midtones stay vivid. Use mix for a different space.

Example
-- Blended in Oklab: halfway from black to white is the gray that
-- looks halfway, darker than sRGB 0.5.
local black = datumhue.color("#000000")
local white = datumhue.color("#ffffff")
print(string.format("%.2f", black:lerp(white, 0.5).r)) --> 0.39
-- t is clamped to 0..1.
print(black:lerp(white, 2) == black:lerp(white, 1)) --> true

Color:mix

method
Color:mix(o: Color, t: number, space: color.MixSpace) -> Color

Interpolate toward o by t (clamped 0..1) in the given color space.

Example
local red = datumhue.color("#ff0000")
local blue = datumhue.color("#0000ff")
print(red:mix(blue, 0.5, "srgb")) --> color(0.5, 0.0, 0.5, 1.0)
-- Around the hue wheel: halfway from red to blue is magenta.
print(red:mix(blue, 0.5, "hsl")) --> color(1.0, 0.0, 1.0, 1.0)

Color:darken

method
Color:darken(amount: number) -> Color

Perceptually darken by amount (subtracted from Oklab lightness, 0..1); alpha unchanged.

Example
-- The amount comes off Oklab lightness, which runs 0 to 1.
local leaf = datumhue.color("#a7c080")
local before = leaf:to_oklch()
local after = leaf:darken(0.2):to_oklch()
print(string.format("%.2f", before - after)) --> 0.20

Color:lighten

method
Color:lighten(amount: number) -> Color

Perceptually lighten by amount (added to Oklab lightness, 0..1); alpha unchanged.

Color:with_a

method
Color:with_a(alpha: number) -> Color

Copy with the alpha channel replaced (clamped 0..1).

Color:with_r

method
Color:with_r(r: number) -> Color

Copy with the sRGB red channel replaced (clamped 0..1).

Color:with_g

method
Color:with_g(g: number) -> Color

Copy with the sRGB green channel replaced (clamped 0..1).

Color:with_b

method
Color:with_b(b: number) -> Color

Copy with the sRGB blue channel replaced (clamped 0..1).

Color:rotate_hue

method
Color:rotate_hue(degrees: number) -> Color

Rotate the hue by degrees — hue is the API's one angle in degrees (the CSS convention), matching color.hsl; every other angle is radians.

Example
-- Degrees. A color made from a hex string or r, g, b turns around
-- the perceptual (Oklch) hue wheel.
local leaf = datumhue.color("#a7c080")
local _, _, hue = leaf:to_oklch()
local _, _, turned = leaf:rotate_hue(120):to_oklch()
print(string.format("%.0f", turned - hue)) --> 120

Color:saturate

method
Color:saturate(amount: number) -> Color

Increase saturation by amount (clamped 0..1).

Color:desaturate

method
Color:desaturate(amount: number) -> Color

Decrease saturation by amount (clamped 0..1).

Color:to_array

method
Color:to_array() -> number[]

Components as an {r, g, b, a} array (sRGB, 0..1).

Color:to_hsl

method
Color:to_hsl() -> number, number, number

Hue (degrees), saturation and lightness as three values.

Example
-- Hue in degrees; saturation and lightness 0 to 1.
local h, s, l = datumhue.color("#00ff00"):to_hsl()
print(h, s, l) --> 120.0 1.0 0.5

Color:to_oklch

method
Color:to_oklch() -> number, number, number

Oklch lightness, chroma and hue (degrees) as three values.

Example
-- Lightness 0 to 1, chroma, and hue in degrees.
local l, c, h = datumhue.color("#ff0000"):to_oklch()
print(string.format("%.2f %.2f %.1f", l, c, h)) --> 0.63 0.26 29.2

Color:unpack

method
Color:unpack() -> number, number, number, number

Return the r, g, b and a components as four values.

Example
local r, g, b, a = datumhue.color(1, 0.5, 0, 0.25):unpack()
print(r, g, b, a) --> 1.0 0.5 0.0 0.25

datumhue.com

(c) 2026 Shuusei AB. Quote excerpts of this manual, with attribution to DatumHue, in your own documentation, tutorials, course materials, reviews, and other writing or video. Republishing it in whole or in substantial part needs written permission: support@datumhue.com.

Victor Mono is licensed under the SIL Open Font License 1.1
Copyright (c) 2024, Rune Bjørnerås (https://github.com/rubjo)

This Font Software is licensed under the SIL Open Font License, Version 1.1.
This license is copied below, and is also available with a FAQ at:
http://scripts.sil.org/OFL


-----------------------------------------------------------
SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
-----------------------------------------------------------

PREAMBLE
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to any document created using the fonts or their derivatives.

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