#57D9F4#57D9F4

#57D9F4 is a very light, moderate cyan. Relative luminance 0.582; OKLCH L 82.4% C 0.118 H 213.9°. Best body text is #000000 at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#57D9F4
RGB	rgb(87, 217, 244)
HSL	hsl(190, 88%, 65%)
HSV	hsv(190, 64%, 96%)
CMYK	cmyk(64.3%, 11.1%, 0%, 4.3%)
CIE-LAB	lab(80.84, -27.52, -23.76)
CIE-LCH	lch(80.84, 36.36, 220.81°)
OKLab	oklab(82.4% -0.0982 -0.066)
OKLCH	oklch(82.4% 0.118 213.9)
XYZ	xyz(45.0657, 58.1787, 94.4250)
Luminance	0.5818 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57D9F4 #F47257

analogous

#57F4C0 #57D9F4 #578BF4

triadic

#57D9F4 #F457D9 #D9F457

tetradic

#57D9F4 #C057F4 #F47257 #8BF457

square

#57D9F4 #C057F4 #F47257 #8BF457

split-complementary

#57D9F4 #F4578B #F4C057

monochromatic

#0DA4C4 #1ECCF0 #57D9F4 #90E6F8 #CAF3FC

Accessibility & contrast

On white

1.66

#57D9F4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.64

#57D9F4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57D9F4

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57D9F4	#FFFFFF	#000000	##000000
##57D9F4	1.00	1.66	12.64	12.64
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.64	21.00	1.00	1.00
##000000	12.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5D2F6

Deuteranopia (green-blind)

#AEC1F4

Tritanopia (blue-blind)

#00E3E1

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #57d9f4;
/* rgb */ color: rgb(87, 217, 244);
/* oklch */ color: oklch(82.4% 0.118 213.9);

Tailwind

colors: {
  custom: {
    50: '#97e5f7',
    500: '#57d9f4',
    950: '#000000',
  },
}

SCSS

$custom: #57d9f4;
$custom-light: #97e5f7;
$custom-dark: #000000;

JSON

{
  "hex": "#57d9f4",
  "rgb": {
    "r": 87,
    "g": 217,
    "b": 244
  },
  "hsl": {
    "h": 190.318,
    "s": 87.709,
    "l": 64.902
  },
  "oklch": {
    "l": 0.82398,
    "c": 0.11834,
    "h": 213.9
  },
  "luminance": 0.58184
}

Semantic roles & 50–950 ramp

primary

#57D9F4

secondary

#C1472E

accent

#2801E4

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #57D9F4

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

Preview Lab → · Contrast checker → · Palette generator →