#57C9EE#57C9EE
#57C9EE is a light, moderate cyan. Relative luminance 0.500; OKLCH L 78.5% C 0.115 H 222.6°. Best body text is #000000 at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #57C9EE |
|---|---|
| RGB | rgb(87, 201, 238) |
| HSL | hsl(195, 82%, 64%) |
| HSV | hsv(195, 63%, 93%) |
| CMYK | cmyk(63.4%, 15.5%, 0%, 6.7%) |
| CIE-LAB | lab(76.05, -21.31, -27.87) |
| CIE-LCH | lch(76.05, 35.08, 232.59°) |
| OKLab | oklab(78.49% -0.0844 -0.0777) |
| OKLCH | oklch(78.49% 0.115 222.6) |
| XYZ | xyz(40.2435, 49.9683, 88.3963) |
| Luminance | 0.4997 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Bright Sky Blue
#02CCFE
ΔE00 3.26
Sky Blue
#87CEEB
ΔE00 4.61
Neon Blue
#04D9FF
ΔE00 5.02
Baby Blue
#89CFF0
ΔE00 5.06
Lightblue (survey)
#7BC8F6
ΔE00 5.88
Lightskyblue
#87CEFA
ΔE00 6.61
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#57C9EE #EE7C57
analogous
#57EEC7 #57C9EE #577DEE
triadic
#57C9EE #EE57C9 #C9EE57
tetradic
#57C9EE #C757EE #EE7C57 #7DEE57
square
#57C9EE #C757EE #EE7C57 #7DEE57
split-complementary
#57C9EE #EE577D #EEC757
monochromatic
#138FB8 #1FB7E8 #57C9EE #8FDBF4 #C6EDF9
Accessibility & contrast
On white
1.91
#57C9EE on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.99
#57C9EE on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #57C9EE
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##57C9EE | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##57C9EE | 1.00 | 1.91 | 10.99 | 10.99 |
| #FFFFFF | 1.91 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B4C4F0
Deuteranopia (green-blind)
#9EB5EE
Tritanopia (blue-blind)
#00D5D5
Achromatopsia (no color)
#BBBBBB
Design tokens & code
CSS
--color: #57c9ee; /* rgb */ color: rgb(87, 201, 238); /* oklch */ color: oklch(78.5% 0.115 222.6);
Tailwind
colors: {
custom: {
50: '#95d9f3',
500: '#57c9ee',
950: '#000000',
},
}SCSS
$custom: #57c9ee; $custom-light: #95d9f3; $custom-dark: #000000;
JSON
{
"hex": "#57c9ee",
"rgb": {
"r": 87,
"g": 201,
"b": 238
},
"hsl": {
"h": 194.702,
"s": 81.622,
"l": 63.725
},
"oklch": {
"l": 0.78488,
"c": 0.11471,
"h": 222.6
},
"luminance": 0.49973
}Semantic roles & 50–950 ramp
primary
#57C9EE
secondary
#EBC3B6
accent
#3C08DE
background
#F9FDFE
surface
#F2FAFD
border
#CCD3D5
text
#0F1417
muted
#7E8385