#42B7D7#42B7D7
#42B7D7 is a light, moderate cyan. Relative luminance 0.399; OKLCH L 72.7% C 0.112 H 219.7°. Best body text is #000000 at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #42B7D7 |
|---|---|
| RGB | rgb(66, 183, 215) |
| HSL | hsl(193, 65%, 55%) |
| HSV | hsv(193, 69%, 84%) |
| CMYK | cmyk(69.3%, 14.9%, 0%, 15.7%) |
| CIE-LAB | lab(69.42, -22.38, -25.61) |
| CIE-LCH | lch(69.42, 34.01, 228.84°) |
| OKLab | oklab(72.73% -0.0861 -0.0715) |
| OKLCH | oklch(72.73% 0.112 219.7) |
| XYZ | xyz(31.4409, 39.9280, 70.3266) |
| Luminance | 0.3993 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 6.00
Bright Sky Blue
#02CCFE
ΔE00 6.63
Deepskyblue
#00BFFF
ΔE00 7.85
Sky Blue
#87CEEB
ΔE00 8.30
Neon Blue
#04D9FF
ΔE00 8.68
Baby Blue
#89CFF0
ΔE00 8.96
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#42B7D7 #D76242
analogous
#42D7AD #42B7D7 #426CD7
triadic
#42B7D7 #D742B7 #B7D742
tetradic
#42B7D7 #AD42D7 #D76242 #6CD742
square
#42B7D7 #AD42D7 #D76242 #6CD742
split-complementary
#42B7D7 #D7426C #D7AD42
monochromatic
#1C6D83 #2697B5 #42B7D7 #75CAE2 #A7DDEC
Accessibility & contrast
On white
2.34
#42B7D7 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.99
#42B7D7 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #42B7D7
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##42B7D7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##42B7D7 | 1.00 | 2.34 | 8.99 | 8.99 |
| #FFFFFF | 2.34 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#A3B2D9
Deuteranopia (green-blind)
#8FA3D7
Tritanopia (blue-blind)
#00C2C1
Achromatopsia (no color)
#A9A9A9
Design tokens & code
CSS
--color: #42b7d7; /* rgb */ color: rgb(66, 183, 215); /* oklch */ color: oklch(72.7% 0.112 219.7);
Tailwind
colors: {
custom: {
50: '#89cce3',
500: '#42b7d7',
950: '#000000',
},
}SCSS
$custom: #42b7d7; $custom-light: #89cce3; $custom-dark: #000000;
JSON
{
"hex": "#42b7d7",
"rgb": {
"r": 66,
"g": 183,
"b": 215
},
"hsl": {
"h": 192.886,
"s": 65.066,
"l": 55.098
},
"oklch": {
"l": 0.72734,
"c": 0.11188,
"h": 219.7
},
"luminance": 0.39932
}Semantic roles & 50–950 ramp
primary
#42B7D7
secondary
#DAA99B
accent
#6440E8
background
#F9FCFD
surface
#F1F9FB
border
#CBD2D4
text
#0D1315
muted
#7E8283