#57C4EF#57C4EF
#57C4EF is a light, moderate cyan. Relative luminance 0.477; OKLCH L 77.4% C 0.116 H 227.2°. Best body text is #000000 at 10.55:1 contrast (WCAG AA passes).
Color values
| HEX | #57C4EF |
|---|---|
| RGB | rgb(87, 196, 239) |
| HSL | hsl(197, 83%, 64%) |
| HSV | hsv(197, 64%, 94%) |
| CMYK | cmyk(63.6%, 18%, 0%, 6.3%) |
| CIE-LAB | lab(74.66, -18.44, -30.55) |
| CIE-LCH | lch(74.66, 35.68, 238.88°) |
| OKLab | oklab(77.39% -0.079 -0.0853) |
| OKLCH | oklch(77.39% 0.116 227.2) |
| XYZ | xyz(39.2442, 47.7340, 88.7900) |
| Luminance | 0.4774 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Bright Sky Blue
#02CCFE
ΔE00 3.44
Lightblue (survey)
#7BC8F6
ΔE00 4.46
Deepskyblue
#00BFFF
ΔE00 4.60
Baby Blue
#89CFF0
ΔE00 5.22
Sky Blue
#87CEEB
ΔE00 5.27
Lightskyblue
#87CEFA
ΔE00 5.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#57C4EF #EF8257
analogous
#57EFCE #57C4EF #5778EF
triadic
#57C4EF #EF57C4 #C4EF57
tetradic
#57C4EF #CE57EF #EF8257 #78EF57
square
#57C4EF #CE57EF #EF8257 #78EF57
split-complementary
#57C4EF #EF5778 #EFCE57
monochromatic
#128ABA #1FB0EA #57C4EF #8FD8F4 #C7EBFA
Accessibility & contrast
On white
1.99
#57C4EF on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.55
#57C4EF on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #57C4EF
10.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##57C4EF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##57C4EF | 1.00 | 1.99 | 10.55 | 10.55 |
| #FFFFFF | 1.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.55 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.55 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#ADC1F1
Deuteranopia (green-blind)
#98B1EE
Tritanopia (blue-blind)
#00D0D2
Achromatopsia (no color)
#B8B8B8
Design tokens & code
CSS
--color: #57c4ef; /* rgb */ color: rgb(87, 196, 239); /* oklch */ color: oklch(77.4% 0.116 227.2);
Tailwind
colors: {
custom: {
50: '#95d6f4',
500: '#57c4ef',
950: '#000000',
},
}SCSS
$custom: #57c4ef; $custom-light: #95d6f4; $custom-dark: #000000;
JSON
{
"hex": "#57c4ef",
"rgb": {
"r": 87,
"g": 196,
"b": 239
},
"hsl": {
"h": 196.974,
"s": 82.609,
"l": 63.922
},
"oklch": {
"l": 0.77387,
"c": 0.11626,
"h": 227.2
},
"luminance": 0.47738
}Semantic roles & 50–950 ramp
primary
#57C4EF
secondary
#ECC5B6
accent
#4406DF
background
#F9FDFE
surface
#F2FAFD
border
#CCD3D5
text
#0F1417
muted
#7E8385