Luminance
0.328
Category
Blue
Type
Dark
Best On
Color Codes
All color formats for your project
HEX
#00A4EF00A4EFRGB
rgb(0, 164, 239)R:0 G:164 B:239HSL
hsl(199, 100%, 47%)H:199° S:100% L:47%HSV / HSB
hsv(199, 100%, 94%)H:199° S:100% V:94%CMYK
cmyk(100%, 31%, 0%, 6%)C:100 M:31 Y:0 K:6LAB
lab(64, -9, -47)L:64 a:-9 b:-47OKLCH
oklch(68.5% 0.156 239.6)L:68.5% C:0.156 H:239.6°Code Formats
color: #00A4EF;UIColor(red: 0.000, green: 0.643, blue: 0.937, alpha: 1.0)Color(0xFF00A4EF)Color(0xFF00A4EF)#FF00A4EFContrast Analysis
WCAG compliance with grayscale colors
On White
2.78:1
On Black
7.56:1
Grayscale Contrast
0%
7.6
AAA10%
6.3
AA20%
4.5
AA30%
3.0
AA-large40%
2.1
Fail50%
1.4
Fail60%
1.0
Fail70%
1.3
Fail80%
1.7
Fail90%
2.2
Fail100%
2.8
FailBest Grayscale Contrast
#000000 with ratio 7.56:1
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, #57CAFF 0%, #005E8A 100%)linear-gradient(90deg, oklch(79.4% 0.127 231.5) 0%, oklch(45.8% 0.103 238.7) 100%)Vibrant
135°linear-gradient(135deg, #24BAFF 0%, #008BCC 100%)linear-gradient(135deg, oklch(74.7% 0.152 235.7) 0%, oklch(60.7% 0.139 239.9) 100%)Complementary
90°linear-gradient(90deg, #00A4EF 0%, #F04C00 100%)linear-gradient(90deg, oklch(68.5% 0.156 239.6) 0%, oklch(64.2% 0.210 37.9) 100%)Analogous
90°linear-gradient(90deg, #00F0C4 0%, #00A4EF 50%, #002CF0 100%)linear-gradient(90deg, oklch(85.1% 0.163 173.0) 0%, oklch(68.5% 0.156 239.6) 50%, oklch(45.9% 0.281 264.2) 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, #00A4F0 0%, #092634 100%)linear-gradient(180deg, oklch(68.5% 0.157 240.0) 0%, oklch(25.5% 0.043 233.1) 100%)Radial Glow
Radialradial-gradient(circle, #3DC2FF 0%, #0070A3 100%)radial-gradient(circle, oklch(76.9% 0.141 233.2) 0%, oklch(51.8% 0.116 238.6) 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.