Luminance
0.141
Category
Red
Type
Dark
Best On
Color Codes
All color formats for your project
HEX
#D50000D50000RGB
rgb(213, 0, 0)R:213 G:0 B:0HSL
hsl(0, 100%, 42%)H:0° S:100% L:42%HSV / HSB
hsv(0, 100%, 84%)H:0° S:100% V:84%CMYK
cmyk(0%, 100%, 100%, 16%)C:0 M:100 Y:100 K:16LAB
lab(44, 70, 59)L:44 a:70 b:59OKLCH
oklch(54.8% 0.225 29.2)L:54.8% C:0.225 H:29.2°Code Formats
color: #D50000;UIColor(red: 0.835, green: 0.000, blue: 0.000, alpha: 1.0)Color(0xFFD50000)Color(0xFFD50000)#FFD50000Contrast Analysis
WCAG compliance with grayscale colors
On White
5.48:1
On Black
3.83:1
Grayscale Contrast
0%
3.8
AA-large10%
3.2
AA-large20%
2.3
Fail30%
1.5
Fail40%
1.0
Fail50%
1.4
Fail60%
1.9
Fail70%
2.6
Fail80%
3.4
AA-large90%
4.4
AA-large100%
5.5
AABest Grayscale Contrast
#FFFFFF with ratio 5.48:1
Color Harmonies
Harmonious color combinations
complementary
Two colors opposite on the color wheel (180°)
split-complementary
Base color + two colors adjacent to its complement
triadic
Three colors evenly spaced (120° apart)
tetradic
Four colors evenly spaced (90° apart)
analogous
Three colors adjacent on the color wheel (30° apart)
Color Variations
Tints, shades, tones, and full scale
Color Scale (50-900)
50
100
200
300
400
500
600
700
800
900
Tints (Lighter)
Shades (Darker)
Tones (Desaturated)
Gradients (OKLCH)
Primary
90°linear-gradient(90deg, #FF3D3D 0%, #800000 100%)linear-gradient(90deg, oklch(65.7% 0.229 26.3) 0%, oklch(37.7% 0.155 29.2) 100%)Vibrant
135°linear-gradient(135deg, #FF0A0A 0%, #CC0000 100%)linear-gradient(135deg, oklch(63.0% 0.256 29.0) 0%, oklch(53.1% 0.218 29.2) 100%)Complementary
90°linear-gradient(90deg, #D50000 0%, #00D6D6 100%)linear-gradient(90deg, oklch(54.8% 0.225 29.2) 0%, oklch(79.3% 0.135 194.8) 100%)Analogous
90°linear-gradient(90deg, #D6006B 0%, #D50000 50%, #D66B00 100%)linear-gradient(90deg, oklch(56.6% 0.228 2.2) 0%, oklch(54.8% 0.225 29.2) 50%, oklch(64.2% 0.162 53.3) 100%)Sunset
90°linear-gradient(90deg, #F6CE55 0%, #EE6C2B 50%, #E6193C 100%)linear-gradient(90deg, oklch(86.4% 0.144 90.6) 0%, oklch(68.0% 0.177 43.8) 50%, oklch(59.1% 0.228 21.2) 100%)Ocean
135°linear-gradient(135deg, #19A1E6 0%, #22C3B6 50%, #47D1A3 100%)linear-gradient(135deg, oklch(67.5% 0.146 238.9) 0%, oklch(73.8% 0.124 186.2) 50%, oklch(77.5% 0.136 166.9) 100%)Dark Mode
180°linear-gradient(180deg, #D60000 0%, #340909 100%)linear-gradient(180deg, oklch(55.0% 0.226 29.2) 0%, oklch(22.0% 0.069 24.8) 100%)Radial Glow
Radialradial-gradient(circle, #FF2424 0%, #990000 100%)radial-gradient(circle, oklch(63.9% 0.246 27.9) 0%, oklch(42.9% 0.176 29.2) 100%)💡 About OKLCH Gradients
OKLCH (Oklch Color Space) provides perceptually uniform gradients with better color transitions than traditional RGB/HSL gradients. The format is oklch(L% C H) where L = Lightness (0-100%), C = Chroma (0-0.4), H = Hue (0-360°).
Generate Full Palette
Create a complete brand palette from this color with primary, secondary, accent, and neutral scales.