#57BCE9#57BCE9

#57BCE9 is a light, moderate cyan. Relative luminance 0.439; OKLCH L 75.3% C 0.114 H 230.1°. Best body text is #000000 at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#57BCE9
RGB	rgb(87, 188, 233)
HSL	hsl(198, 77%, 63%)
HSV	hsv(198, 63%, 91%)
CMYK	cmyk(62.7%, 19.3%, 0%, 8.6%)
CIE-LAB	lab(72.14, -16.11, -31.18)
CIE-LCH	lch(72.14, 35.09, 242.67°)
OKLab	oklab(75.31% -0.0729 -0.0872)
OKLCH	oklch(75.31% 0.114 230.1)
XYZ	xyz(36.6159, 43.8721, 83.6135)
Luminance	0.4388 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57BCE9 #E98457

analogous

#57E9CD #57BCE9 #5773E9

triadic

#57BCE9 #E957BC #BCE957

tetradic

#57BCE9 #CD57E9 #E98457 #73E957

square

#57BCE9 #CD57E9 #E98457 #73E957

split-complementary

#57BCE9 #E95773 #E9CD57

monochromatic

#1780AF #21A6E2 #57BCE9 #8DD2F0 #C3E7F7

Accessibility & contrast

On white

2.15

#57BCE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.78

#57BCE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57BCE9

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57BCE9	#FFFFFF	#000000	##000000
##57BCE9	1.00	2.15	9.78	9.78
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.78	21.00	1.00	1.00
##000000	9.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B9EB

Deuteranopia (green-blind)

#91AAE8

Tritanopia (blue-blind)

#00C9CB

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #57bce9;
/* rgb */ color: rgb(87, 188, 233);
/* oklch */ color: oklch(75.3% 0.114 230.1);

Tailwind

colors: {
  custom: {
    50: '#94d0f0',
    500: '#57bce9',
    950: '#000000',
  },
}

SCSS

$custom: #57bce9;
$custom-light: #94d0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#57bce9",
  "rgb": {
    "r": 87,
    "g": 188,
    "b": 233
  },
  "hsl": {
    "h": 198.493,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.75306,
    "c": 0.11365,
    "h": 230.1
  },
  "luminance": 0.43876
}

Semantic roles & 50–950 ramp

primary

#57BCE9

secondary

#E8C4B3

accent

#4C0CD9

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1416

muted

#7E8284

Preview Lab

Preview with #57BCE9

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

Preview Lab → · Contrast checker → · Palette generator →