#57CFE9#57CFE9

#57CFE9 is a light, moderate cyan. Relative luminance 0.525; OKLCH L 79.7% C 0.112 H 214.5°. Best body text is #000000 at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#57CFE9
RGB	rgb(87, 207, 233)
HSL	hsl(191, 77%, 63%)
HSV	hsv(191, 63%, 91%)
CMYK	cmyk(62.7%, 11.2%, 0%, 8.6%)
CIE-LAB	lab(77.60, -25.81, -22.82)
CIE-LCH	lch(77.60, 34.45, 221.48°)
OKLab	oklab(79.67% -0.0924 -0.0634)
OKLCH	oklch(79.67% 0.112 214.5)
XYZ	xyz(40.9452, 52.5308, 85.0566)
Luminance	0.5253 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57CFE9 #E97157

analogous

#57E9BA #57CFE9 #5786E9

triadic

#57CFE9 #E957CF #CFE957

tetradic

#57CFE9 #BA57E9 #E97157 #86E957

square

#57CFE9 #BA57E9 #E97157 #86E957

split-complementary

#57CFE9 #E95786 #E9BA57

monochromatic

#1794AF #21C0E2 #57CFE9 #8DDEF0 #C3EEF7

Accessibility & contrast

On white

1.82

#57CFE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.51

#57CFE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57CFE9

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57CFE9	#FFFFFF	#000000	##000000
##57CFE9	1.00	1.82	11.51	11.51
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.51	21.00	1.00	1.00
##000000	11.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCC9EB

Deuteranopia (green-blind)

#A7B9E9

Tritanopia (blue-blind)

#00D9D7

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #57cfe9;
/* rgb */ color: rgb(87, 207, 233);
/* oklch */ color: oklch(79.7% 0.112 214.5);

Tailwind

colors: {
  custom: {
    50: '#95def0',
    500: '#57cfe9',
    950: '#000000',
  },
}

SCSS

$custom: #57cfe9;
$custom-light: #95def0;
$custom-dark: #000000;

JSON

{
  "hex": "#57cfe9",
  "rgb": {
    "r": 87,
    "g": 207,
    "b": 233
  },
  "hsl": {
    "h": 190.685,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.79671,
    "c": 0.11203,
    "h": 214.5
  },
  "luminance": 0.52535
}

Semantic roles & 50–950 ramp

primary

#57CFE9

secondary

#AF4B35

accent

#310CD9

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #57CFE9

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

Preview Lab → · Contrast checker → · Palette generator →