diff --git a/src/components/NcColorPicker/NcColorPicker.vue b/src/components/NcColorPicker/NcColorPicker.vue
index fae041ee54..5aa9df5215 100644
--- a/src/components/NcColorPicker/NcColorPicker.vue
+++ b/src/components/NcColorPicker/NcColorPicker.vue
@@ -173,7 +173,7 @@ export default {
:style="{ backgroundColor: color }"
class="color-picker__simple-color-circle"
:class="{ 'color-picker__simple-color-circle--active' : color === currentColor }">
-
+
0.5) ? black : white
+ },
},
watch: {
@@ -386,6 +391,28 @@ export default {
this.$emit('input', color)
},
+
+ /**
+ * Calculate luminance of provided hex color
+ *
+ * @param {string} color the hex color
+ */
+ calculateLuma(color) {
+ const [red, green, blue] = this.hexToRGB(color)
+ return (0.2126 * red + 0.7152 * green + 0.0722 * blue) / 255
+ },
+
+ /**
+ * Convert hex color to RGB
+ *
+ * @param {string} hex the hex color
+ */
+ hexToRGB(hex) {
+ const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)
+ return result
+ ? [parseInt(result[1], 16), parseInt(result[2], 16), parseInt(result[3], 16)]
+ : null
+ },
},
}