#57B4CB#57B4CB

#57B4CB is a light, moderate cyan. Relative luminance 0.390; OKLCH L 72.2% C 0.094 H 216.3°. Best body text is #000000 at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#57B4CB
RGB	rgb(87, 180, 203)
HSL	hsl(192, 53%, 57%)
HSV	hsv(192, 57%, 80%)
CMYK	cmyk(57.1%, 11.3%, 0%, 20.4%)
CIE-LAB	lab(68.73, -20.96, -20.01)
CIE-LCH	lch(68.73, 28.98, 223.67°)
OKLab	oklab(72.22% -0.0756 -0.0555)
OKLCH	oklch(72.22% 0.094 216.3)
XYZ	xyz(31.0269, 38.9776, 62.3767)
Luminance	0.3898 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B4CB #CB6E57

analogous

#57CBA8 #57B4CB #577ACB

triadic

#57B4CB #CB57B4 #B4CB57

tetradic

#57B4CB #A857CB #CB6E57 #7ACB57

square

#57B4CB #A857CB #CB6E57 #7ACB57

split-complementary

#57B4CB #CB577A #CBA857

monochromatic

#286E80 #3697AF #57B4CB #86C9D9 #B4DEE8

Accessibility & contrast

On white

2.39

#57B4CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.80

#57B4CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B4CB

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B4CB	#FFFFFF	#000000	##000000
##57B4CB	1.00	2.39	8.80	8.80
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.80	21.00	1.00	1.00
##000000	8.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4AFCC

Deuteranopia (green-blind)

#93A2CB

Tritanopia (blue-blind)

#00BCBB

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #57b4cb;
/* rgb */ color: rgb(87, 180, 203);
/* oklch */ color: oklch(72.2% 0.094 216.3);

Tailwind

colors: {
  custom: {
    50: '#90cada',
    500: '#57b4cb',
    950: '#000000',
  },
}

SCSS

$custom: #57b4cb;
$custom-light: #90cada;
$custom-dark: #000000;

JSON

{
  "hex": "#57b4cb",
  "rgb": {
    "r": 87,
    "g": 180,
    "b": 203
  },
  "hsl": {
    "h": 191.897,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.72221,
    "c": 0.09379,
    "h": 216.3
  },
  "luminance": 0.38981
}

Semantic roles & 50–950 ramp

primary

#57B4CB

secondary

#D7B1A7

accent

#684CDC

background

#F9FCFD

surface

#F2F8FA

border

#CCD1D3

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #57B4CB

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

Preview Lab → · Contrast checker → · Palette generator →