I need to get the RGB color ranges of some basic colors. ex Red color is between RGB(a,b,c) to RGB(x,y,z) like wise or using its Hue value.Any suggestions are welcome.
I don't think anyone can answer this in a convincing way as it is all based on the opinion of the person answering. What do you really consider Red ?
Consider G = 0 and B = 0 , now start increasing R from 0 step by step. People would argue, is (100, 0, 0) a valid red for you ? Or (150, 0, 0) is the start range for you ? You really need to test this yourself.
The below is not scientific at all, it is only based on my opinion:
I would consider Red starting from (160, 0, 0) going up to (255, 0 0) .
Also, When R = 255 . I would consider any value (R= 255, G = g, B = b) where g > b as Red. Until you reach (g = 200 and b = 200) when it starts actually being white.
But when b > g , you'll get a color that may be considered a variation of red until certain range.
Conclusion: There is no correct answer for this. You really need to test it out and check what best match your requirement.
Here is a javascript approach to come up with an array of rgb values between two rgb values.
const lightestColor = 'rgb(204, 224, 245)';
const darkestColor = 'rgb(0, 102, 206)';
const length = 5
const colorArray = this._interpolateColors(
lightestColor,
darkestColor,
length
);
// interpolate between two colors completely, returning an array of rgb values
private _interpolateColors(color1, color2, steps): string[] {
const stepFactor = 1 / (steps - 1);
const rgbArray = [];
color1 = color1.match(/\d+/g).map(Number);
color2 = color2.match(/\d+/g).map(Number);
for (let i = 0; i < steps; i++) {
const color = this._interpolateColor(color1, color2, stepFactor * i);
const string = color.join(', ');
rgbArray.push('rgb(' + string + ')');
}
return rgbArray;
}
// Returns a single rgb color interpolation between given rgb color
// based on the factor given; via https://codepen.io/njmcode/pen/axoyD?editors=0010
private _interpolateColor(color1, color2, factor): number[] {
if (arguments.length < 3) {
factor = 0.5;
}
const result = color1.slice();
for (let i = 0; i < 3; i++) {
result[i] = Math.round(result[i] + factor * (color2[i] - color1[i]));
}
return result;
}
console.log('colorArray. -->', colorArray);
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.