#57C5EF#57C5EF

#57C5EF is a light, moderate cyan. Relative luminance 0.482; OKLCH L 77.6% C 0.116 H 226.4°. Best body text is #000000 at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#57C5EF
RGB	rgb(87, 197, 239)
HSL	hsl(197, 83%, 64%)
HSV	hsv(197, 64%, 94%)
CMYK	cmyk(63.6%, 17.6%, 0%, 6.3%)
CIE-LAB	lab(74.94, -18.96, -30.11)
CIE-LCH	lch(74.94, 35.58, 237.80°)
OKLab	oklab(77.61% -0.08 -0.0841)
OKLCH	oklch(77.61% 0.116 226.4)
XYZ	xyz(39.4705, 48.1866, 88.8654)
Luminance	0.4819 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57C5EF #EF8157

analogous

#57EFCD #57C5EF #5779EF

triadic

#57C5EF #EF57C5 #C5EF57

tetradic

#57C5EF #CD57EF #EF8157 #79EF57

square

#57C5EF #CD57EF #EF8157 #79EF57

split-complementary

#57C5EF #EF5779 #EFCD57

monochromatic

#128BBA #1FB2EA #57C5EF #8FD8F4 #C7ECFA

Accessibility & contrast

On white

1.97

#57C5EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.64

#57C5EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57C5EF

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57C5EF	#FFFFFF	#000000	##000000
##57C5EF	1.00	1.97	10.64	10.64
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.64	21.00	1.00	1.00
##000000	10.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEC1F1

Deuteranopia (green-blind)

#99B2EF

Tritanopia (blue-blind)

#00D1D3

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #57c5ef;
/* rgb */ color: rgb(87, 197, 239);
/* oklch */ color: oklch(77.6% 0.116 226.4);

Tailwind

colors: {
  custom: {
    50: '#95d6f4',
    500: '#57c5ef',
    950: '#000000',
  },
}

SCSS

$custom: #57c5ef;
$custom-light: #95d6f4;
$custom-dark: #000000;

JSON

{
  "hex": "#57c5ef",
  "rgb": {
    "r": 87,
    "g": 197,
    "b": 239
  },
  "hsl": {
    "h": 196.579,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.77615,
    "c": 0.11603,
    "h": 226.4
  },
  "luminance": 0.48191
}

Semantic roles & 50–950 ramp

primary

#57C5EF

secondary

#ECC5B6

accent

#4206DF

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0F1417

muted

#7E8385

Preview Lab

Preview with #57C5EF

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

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