#57D5EF#57D5EF

#57D5EF is a light, moderate cyan. Relative luminance 0.558; OKLCH L 81.3% C 0.116 H 213.7°. Best body text is #000000 at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#57D5EF
RGB	rgb(87, 213, 239)
HSL	hsl(190, 83%, 64%)
HSV	hsv(190, 64%, 94%)
CMYK	cmyk(63.6%, 10.9%, 0%, 6.3%)
CIE-LAB	lab(79.52, -27.02, -23.10)
CIE-LCH	lch(79.52, 35.55, 220.53°)
OKLab	oklab(81.29% -0.0961 -0.0642)
OKLCH	oklch(81.29% 0.116 213.7)
XYZ	xyz(43.2983, 55.8421, 90.1413)
Luminance	0.5585 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57D5EF #EF7157

analogous

#57EFBD #57D5EF #5789EF

triadic

#57D5EF #EF57D5 #D5EF57

tetradic

#57D5EF #BD57EF #EF7157 #89EF57

square

#57D5EF #BD57EF #EF7157 #89EF57

split-complementary

#57D5EF #EF5789 #EFBD57

monochromatic

#129DBA #1FC7EA #57D5EF #8FE3F4 #C7F1FA

Accessibility & contrast

On white

1.73

#57D5EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.17

#57D5EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57D5EF

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57D5EF	#FFFFFF	#000000	##000000
##57D5EF	1.00	1.73	12.17	12.17
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.17	21.00	1.00	1.00
##000000	12.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2CEF1

Deuteranopia (green-blind)

#ACBEEF

Tritanopia (blue-blind)

#00DFDD

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #57d5ef;
/* rgb */ color: rgb(87, 213, 239);
/* oklch */ color: oklch(81.3% 0.116 213.7);

Tailwind

colors: {
  custom: {
    50: '#96e2f4',
    500: '#57d5ef',
    950: '#000000',
  },
}

SCSS

$custom: #57d5ef;
$custom-light: #96e2f4;
$custom-dark: #000000;

JSON

{
  "hex": "#57d5ef",
  "rgb": {
    "r": 87,
    "g": 213,
    "b": 239
  },
  "hsl": {
    "h": 190.263,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.81286,
    "c": 0.11558,
    "h": 213.7
  },
  "luminance": 0.55847
}

Semantic roles & 50–950 ramp

primary

#57D5EF

secondary

#B94931

accent

#2C06DF

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #57D5EF

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

Preview Lab → · Contrast checker → · Palette generator →