#42ADD2#42ADD2
#42ADD2 is a light, moderate cyan. Relative luminance 0.357; OKLCH L 70.2% C 0.110 H 224.8°. Best body text is #000000 at 8.14:1 contrast (WCAG AA passes).
Color values
| HEX | #42ADD2 |
|---|---|
| RGB | rgb(66, 173, 210) |
| HSL | hsl(195, 62%, 54%) |
| HSV | hsv(195, 69%, 82%) |
| CMYK | cmyk(68.6%, 17.6%, 0%, 17.6%) |
| CIE-LAB | lab(66.29, -18.78, -27.67) |
| CIE-LCH | lch(66.29, 33.44, 235.84°) |
| OKLab | oklab(70.16% -0.078 -0.0774) |
| OKLCH | oklch(70.16% 0.11 224.8) |
| XYZ | xyz(28.8185, 35.6953, 66.3314) |
| Luminance | 0.3570 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deepskyblue
#00BFFF
ΔE00 7.43
Turquoise Blue
#06B1C4
ΔE00 7.69
Greyblue
#77A1B5
ΔE00 7.91
Bright Sky Blue
#02CCFE
ΔE00 8.51
Lightblue (survey)
#7BC8F6
ΔE00 9.55
Sky Blue
#87CEEB
ΔE00 10.20
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#42ADD2 #D26742
analogous
#42D2AF #42ADD2 #4265D2
triadic
#42ADD2 #D242AD #ADD242
tetradic
#42ADD2 #AF42D2 #D26742 #65D242
square
#42ADD2 #AF42D2 #D26742 #65D242
split-complementary
#42ADD2 #D24265 #D2AF42
monochromatic
#1E647C #298CAD #42ADD2 #73C2DE #A5D8EA
Accessibility & contrast
On white
2.58
#42ADD2 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.14
#42ADD2 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #42ADD2
8.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##42ADD2 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##42ADD2 | 1.00 | 2.58 | 8.14 | 8.14 |
| #FFFFFF | 2.58 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.14 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.14 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#98A9D4
Deuteranopia (green-blind)
#859BD2
Tritanopia (blue-blind)
#00B8B9
Achromatopsia (no color)
#A1A1A1
Design tokens & code
CSS
--color: #42add2; /* rgb */ color: rgb(66, 173, 210); /* oklch */ color: oklch(70.2% 0.110 224.8);
Tailwind
colors: {
custom: {
50: '#87c5e0',
500: '#42add2',
950: '#000000',
},
}SCSS
$custom: #42add2; $custom-light: #87c5e0; $custom-dark: #000000;
JSON
{
"hex": "#42add2",
"rgb": {
"r": 66,
"g": 173,
"b": 210
},
"hsl": {
"h": 195.417,
"s": 61.538,
"l": 54.118
},
"oklch": {
"l": 0.70162,
"c": 0.10986,
"h": 224.8
},
"luminance": 0.35699
}Semantic roles & 50–950 ramp
primary
#42ADD2
secondary
#D7A999
accent
#6D43E5
background
#F9FCFD
surface
#F1F8FB
border
#CBD1D4
text
#0D1315
muted
#7E8283