#57C3EF#57C3EF

#57C3EF is a light, moderate cyan. Relative luminance 0.473; OKLCH L 77.2% C 0.117 H 228.0°. Best body text is #000000 at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#57C3EF
RGB	rgb(87, 195, 239)
HSL	hsl(197, 83%, 64%)
HSV	hsv(197, 64%, 94%)
CMYK	cmyk(63.6%, 18.4%, 0%, 6.3%)
CIE-LAB	lab(74.37, -17.92, -30.99)
CIE-LCH	lch(74.37, 35.80, 239.95°)
OKLab	oklab(77.16% -0.0779 -0.0866)
OKLCH	oklch(77.16% 0.117 228)
XYZ	xyz(39.0194, 47.2844, 88.7150)
Luminance	0.4729 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57C3EF #EF8357

analogous

#57EFCF #57C3EF #5777EF

triadic

#57C3EF #EF57C3 #C3EF57

tetradic

#57C3EF #CF57EF #EF8357 #77EF57

square

#57C3EF #CF57EF #EF8357 #77EF57

split-complementary

#57C3EF #EF5777 #EFCF57

monochromatic

#1289BA #1FAFEA #57C3EF #8FD7F4 #C7EBFA

Accessibility & contrast

On white

2.01

#57C3EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.46

#57C3EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57C3EF

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57C3EF	#FFFFFF	#000000	##000000
##57C3EF	1.00	2.01	10.46	10.46
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.46	21.00	1.00	1.00
##000000	10.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACC0F1

Deuteranopia (green-blind)

#97B0EE

Tritanopia (blue-blind)

#00D0D1

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #57c3ef;
/* rgb */ color: rgb(87, 195, 239);
/* oklch */ color: oklch(77.2% 0.117 228.0);

Tailwind

colors: {
  custom: {
    50: '#95d5f4',
    500: '#57c3ef',
    950: '#000000',
  },
}

SCSS

$custom: #57c3ef;
$custom-light: #95d5f4;
$custom-dark: #000000;

JSON

{
  "hex": "#57c3ef",
  "rgb": {
    "r": 87,
    "g": 195,
    "b": 239
  },
  "hsl": {
    "h": 197.368,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.77159,
    "c": 0.1165,
    "h": 228
  },
  "luminance": 0.47288
}

Semantic roles & 50–950 ramp

primary

#57C3EF

secondary

#ECC6B6

accent

#4506DF

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0F1417

muted

#7E8385

Preview Lab

Preview with #57C3EF

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →