hsl

CSS variable calculation of HSL values

余生长醉 提交于 2021-02-16 20:13:26
问题 I want to have a basic HSL color value which I want to implement as a gradient as follows: :root { --hue: 201; --saturation: 31; --lightness: 40; --mainColor: hsl(var(--hue),var(--saturation),var(--lightness)); --difference: 20; /* 0 + --difference < --lightness < 100 - --difference */ --lightnessPlus: calc(var(--lightness) + var(--difference)); --colorFrom: hsl(var(--hue),var(--saturation),var(--lightnessPlus)); --lightnessMinus: calc(var(--lightness) - var(--difference)); --colorTo: hsl(var

CSS variable calculation of HSL values

谁都会走 提交于 2021-02-16 20:13:19
问题 I want to have a basic HSL color value which I want to implement as a gradient as follows: :root { --hue: 201; --saturation: 31; --lightness: 40; --mainColor: hsl(var(--hue),var(--saturation),var(--lightness)); --difference: 20; /* 0 + --difference < --lightness < 100 - --difference */ --lightnessPlus: calc(var(--lightness) + var(--difference)); --colorFrom: hsl(var(--hue),var(--saturation),var(--lightnessPlus)); --lightnessMinus: calc(var(--lightness) - var(--difference)); --colorTo: hsl(var

HEX to HSL convert javascript [duplicate]

徘徊边缘 提交于 2020-08-23 04:35:10
问题 This question already has answers here : How do you get the hue of a #xxxxxx colour? (5 answers) Closed 2 years ago . Hello I'm trying to create HEX to HSL converter function. I know that at first I should convert HEX to RGB and then from RGB to HSL. I've done so using some script from StackOverflow. S and L is working correctly but H (hue) is not. I do not know why, here's my code: toHSL: function(hex) { var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); var r = parseInt

HEX to HSL convert javascript [duplicate]

点点圈 提交于 2020-08-23 04:33:31
问题 This question already has answers here : How do you get the hue of a #xxxxxx colour? (5 answers) Closed 2 years ago . Hello I'm trying to create HEX to HSL converter function. I know that at first I should convert HEX to RGB and then from RGB to HSL. I've done so using some script from StackOverflow. S and L is working correctly but H (hue) is not. I do not know why, here's my code: toHSL: function(hex) { var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); var r = parseInt

HEX to HSL convert javascript [duplicate]

给你一囗甜甜゛ 提交于 2020-08-23 04:33:05
问题 This question already has answers here : How do you get the hue of a #xxxxxx colour? (5 answers) Closed 2 years ago . Hello I'm trying to create HEX to HSL converter function. I know that at first I should convert HEX to RGB and then from RGB to HSL. I've done so using some script from StackOverflow. S and L is working correctly but H (hue) is not. I do not know why, here's my code: toHSL: function(hex) { var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); var r = parseInt

How to convert RGB to HSL in C?

匆匆过客 提交于 2020-01-23 11:47:51
问题 How do I convert RGB to HSL in C/C++? (Note: This is a (short) self-answer -- I posted it here so people can find it quickly with a search.) 回答1: Translating the code from here, you get: // Assuming sizeof(unsigned int) == 4 * sizeof(unsigned char) unsigned int RgbToHsl(unsigned int rgb) // Alpha value is simply passed through { #ifdef __cplusplus using std::max; using std::min; #endif double r = (rgb >> (0 * CHAR_BIT)) & UCHAR_MAX, g = (rgb >> (1 * CHAR_BIT)) & UCHAR_MAX, b = (rgb >> (2 *

Algorithm for Hue/Saturation Adjustment Layer from Photoshop

蹲街弑〆低调 提交于 2020-01-11 15:38:05
问题 Does anyone know how adjustment layers work in Photoshop? I need to generate a result image having a source image and HSL values from Hue/Saturation adjustment layer. Conversion to RGB and then multiplication with the source color does not work. Or is it possible to replace Hue/Saturation Adjustment Layer with normal layers with appropriately set blending modes (Mulitiply, Screen, Hue, Saturation, Color, Luminocity,...)? If so then how? Thanks 回答1: I've reverse-engineered the computation for

Generate gradient step based on dynamic value, including decimals

三世轮回 提交于 2020-01-07 05:45:20
问题 Based on this question, which has a fabulous answer for values from 0..1, I tried to modify the function to include the min and max values. function getColor(value, min, max){ var hue=((max-(value-min))*120).toString(10); return ["hsl(",hue,",100%,50%)"].join(""); } It seems to work fine for whole numbers, but not so much for decimals. For instance, these work as expected: var value=42; var d=document.createElement('div'); d.textContent="value="+value + " (this should be green)"; d.style

Get hsl color with javascript

荒凉一梦 提交于 2020-01-02 09:18:12
问题 If I have this: .box{ color: #FF3010; background: hsl(0,90%,40%); } and then this: var box = document.querySelector(".box"); var result = document.querySelector(".result"); result.innerHTML = "BG color: "+window.getComputedStyle(box).backgroundColor; result.innerHTML += "<br>"; result.innerHTML += "color:"+window.getComputedStyle(box).color; The problem is that it always prints the values in rgb. So, I have 2 questions: Is it posible to get the value as written in the css? Is it posible to

Get hsl color with javascript

心已入冬 提交于 2020-01-02 09:17:25
问题 If I have this: .box{ color: #FF3010; background: hsl(0,90%,40%); } and then this: var box = document.querySelector(".box"); var result = document.querySelector(".result"); result.innerHTML = "BG color: "+window.getComputedStyle(box).backgroundColor; result.innerHTML += "<br>"; result.innerHTML += "color:"+window.getComputedStyle(box).color; The problem is that it always prints the values in rgb. So, I have 2 questions: Is it posible to get the value as written in the css? Is it posible to