Luminance
0.410
Category
Blue
Type
Dark
Best On
Color Codes
All color formats for your project
HEX
#63B3ED63B3EDRGB
rgb(99, 179, 237)R:99 G:179 B:237HSL
hsl(205, 79%, 66%)H:205° S:79% L:66%HSV / HSB
hsv(205, 58%, 93%)H:205° S:58% V:93%CMYK
cmyk(58%, 24%, 0%, 7%)C:58 M:24 Y:0 K:7LAB
lab(70, -8, -36)L:70 a:-8 b:-36OKLCH
oklch(73.9% 0.115 242.1)L:73.9% C:0.115 H:242.1°Code Formats
color: #63B3ED;UIColor(red: 0.388, green: 0.702, blue: 0.929, alpha: 1.0)Color(0xFF63B3ED)Color(0xFF63B3ED)#FF63B3EDContrast Analysis
WCAG compliance with grayscale colors
On White
2.28:1
On Black
9.20:1
Grayscale Contrast
0%
9.2
AAA10%
7.6
AAA20%
5.5
AA30%
3.7
AA-large40%
2.5
Fail50%
1.8
Fail60%
1.2
Fail70%
1.1
Fail80%
1.4
Fail90%
1.8
Fail100%
2.3
FailBest Grayscale Contrast
#000000 with ratio 9.20:1
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, #BBDEF7 0%, #1985D2 100%)linear-gradient(90deg, oklch(88.3% 0.051 239.2) 0%, oklch(59.9% 0.148 246.7) 100%)Vibrant
135°linear-gradient(135deg, #6BBEFA 0%, #1FA2FF 100%)linear-gradient(135deg, oklch(77.3% 0.118 241.9) 0%, oklch(69.2% 0.172 246.8) 100%)Complementary
90°linear-gradient(90deg, #63B3ED 0%, #ED9D64 100%)linear-gradient(90deg, oklch(73.9% 0.115 242.1) 0%, oklch(76.4% 0.120 55.3) 100%)Analogous
90°linear-gradient(90deg, #64EDE1 0%, #63B3ED 50%, #646FED 100%)linear-gradient(90deg, oklch(86.8% 0.120 187.3) 0%, oklch(73.9% 0.115 242.1) 50%, oklch(59.9% 0.187 275.4) 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, #48A6EA 0%, #10212E 100%)linear-gradient(180deg, oklch(69.9% 0.133 243.4) 0%, oklch(24.0% 0.034 242.9) 100%)Radial Glow
Radialradial-gradient(circle, #8DC8F2 0%, #1F93E5 100%)radial-gradient(circle, oklch(80.8% 0.085 240.1) 0%, oklch(64.3% 0.156 246.2) 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.