#57D4EF#57D4EF

#57D4EF is a light, moderate cyan. Relative luminance 0.553; OKLCH L 81.1% C 0.115 H 214.5°. Best body text is #000000 at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#57D4EF
RGB	rgb(87, 212, 239)
HSL	hsl(191, 83%, 64%)
HSV	hsv(191, 64%, 94%)
CMYK	cmyk(63.6%, 11.3%, 0%, 6.3%)
CIE-LAB	lab(79.24, -26.53, -23.54)
CIE-LCH	lch(79.24, 35.46, 221.58°)
OKLab	oklab(81.06% -0.0951 -0.0654)
OKLCH	oklch(81.06% 0.115 214.5)
XYZ	xyz(43.0475, 55.3406, 90.0578)
Luminance	0.5534 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57D4EF #EF7257

analogous

#57EFBE #57D4EF #5788EF

triadic

#57D4EF #EF57D4 #D4EF57

tetradic

#57D4EF #BE57EF #EF7257 #88EF57

square

#57D4EF #BE57EF #EF7257 #88EF57

split-complementary

#57D4EF #EF5788 #EFBE57

monochromatic

#129CBA #1FC6EA #57D4EF #8FE2F4 #C7F1FA

Accessibility & contrast

On white

1.74

#57D4EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.07

#57D4EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57D4EF

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57D4EF	#FFFFFF	#000000	##000000
##57D4EF	1.00	1.74	12.07	12.07
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.07	21.00	1.00	1.00
##000000	12.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1CEF1

Deuteranopia (green-blind)

#ABBDEF

Tritanopia (blue-blind)

#00DEDC

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #57d4ef;
/* rgb */ color: rgb(87, 212, 239);
/* oklch */ color: oklch(81.1% 0.115 214.5);

Tailwind

colors: {
  custom: {
    50: '#96e1f4',
    500: '#57d4ef',
    950: '#000000',
  },
}

SCSS

$custom: #57d4ef;
$custom-light: #96e1f4;
$custom-dark: #000000;

JSON

{
  "hex": "#57d4ef",
  "rgb": {
    "r": 87,
    "g": 212,
    "b": 239
  },
  "hsl": {
    "h": 190.658,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.81056,
    "c": 0.11544,
    "h": 214.5
  },
  "luminance": 0.55345
}

Semantic roles & 50–950 ramp

primary

#57D4EF

secondary

#B94931

accent

#2D06DF

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #57D4EF

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

Preview Lab → · Contrast checker → · Palette generator →