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Pixeliro

#66D9EF

Sky Blue

#66D9EFSky Blue

Luminance

0.587

Category

Cyan

Type

Light

Best On

#000000

Color Codes

All color formats for your project

HEX

HEX
#66D9EF
No #
66D9EF

RGB

RGB
rgb(102, 217, 239)
Values
R:102 G:217 B:239

HSL

HSL
hsl(190, 81%, 67%)
Values
H:190° S:81% L:67%

HSV / HSB

HSV
hsv(190, 57%, 94%)
Values
H:190° S:57% V:94%

CMYK

CMYK
cmyk(57%, 9%, 0%, 6%)
Values
C:57 M:9 Y:0 K:6

LAB

LAB
lab(81, -26, -21)
Values
L:81 a:-26 b:-21

OKLCH

OKLCH
oklch(82.7% 0.108 212.0)
Values
L:82.7% C:0.108 H:212.0°

Code Formats

CSS
color: #66D9EF;
Swift
UIColor(red: 0.400, green: 0.851, blue: 0.937, alpha: 1.0)
Kotlin
Color(0xFF66D9EF)
Flutter
Color(0xFF66D9EF)
Android
#FF66D9EF

Contrast Analysis

WCAG compliance with grayscale colors

On White

1.65:1

Fail

On Black

12.74:1

AAA

Grayscale Contrast

Aa

0%

12.7

AAA
Aa

10%

10.6

AAA
Aa

20%

7.7

AAA
Aa

30%

5.1

AA
Aa

40%

3.5

AA-large
Aa

50%

2.4

Fail
Aa

60%

1.7

Fail
Aa

70%

1.3

Fail
Aa

80%

1.0

Fail
Aa

90%

1.3

Fail
Aa

100%

1.6

Fail

Best Grayscale Contrast

#000000 with ratio 12.74:1

Aa

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°
CSS
linear-gradient(90deg, #BAEDF8 0%, #17B9D9 100%)
OKLCH
linear-gradient(90deg, oklch(91.4% 0.054 212.3) 0%, oklch(72.5% 0.126 216.5) 100%)
Stops
0%
100%

Vibrant

135°
CSS
linear-gradient(135deg, #69E3FC 0%, #24DAFF 100%)
OKLCH
linear-gradient(135deg, oklch(85.5% 0.114 213.2) 0%, oklch(82.1% 0.141 216.6) 100%)
Stops
0%
100%

Complementary

90°
CSS
linear-gradient(90deg, #66D9EF 0%, #EF7D67 100%)
OKLCH
linear-gradient(90deg, oklch(82.7% 0.108 212.0) 0%, oklch(71.4% 0.145 32.2) 100%)
Stops
0%
100%

Analogous

90°
CSS
linear-gradient(90deg, #67EFC2 0%, #66D9EF 50%, #6794EF 100%)
OKLCH
linear-gradient(90deg, oklch(86.5% 0.136 168.4) 0%, oklch(82.7% 0.108 212.0) 50%, oklch(67.5% 0.144 263.2) 100%)
Stops
0%
50%
100%

Sunset

90°
CSS
linear-gradient(90deg, #F6CE55 0%, #EE6C2B 50%, #E6193C 100%)
OKLCH
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%)
Stops
0%
50%
100%

Ocean

135°
CSS
linear-gradient(135deg, #19A1E6 0%, #22C3B6 50%, #47D1A3 100%)
OKLCH
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%)
Stops
0%
50%
100%

Dark Mode

180°
CSS
linear-gradient(180deg, #46D0EC 0%, #0F292E 100%)
OKLCH
linear-gradient(180deg, oklch(79.6% 0.122 214.2) 0%, oklch(26.3% 0.033 211.9) 100%)
Stops
0%
100%

Radial Glow

Radial
CSS
radial-gradient(circle, #8CE2F3 0%, #21C7E8 100%)
OKLCH
radial-gradient(circle, oklch(86.4% 0.086 211.6) 0%, oklch(76.6% 0.131 216.1) 100%)
Stops
0%
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.

View Palette