#57C9EB#57C9EB

#57C9EB is a light, moderate cyan. Relative luminance 0.498; OKLCH L 78.4% C 0.113 H 220.7°. Best body text is #000000 at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#57C9EB
RGB	rgb(87, 201, 235)
HSL	hsl(194, 79%, 63%)
HSV	hsv(194, 63%, 92%)
CMYK	cmyk(63%, 14.5%, 0%, 7.8%)
CIE-LAB	lab(75.94, -22.21, -26.42)
CIE-LCH	lch(75.94, 34.52, 229.94°)
OKLab	oklab(78.37% -0.0855 -0.0736)
OKLCH	oklch(78.37% 0.113 220.7)
XYZ	xyz(39.8065, 49.7935, 86.0944)
Luminance	0.4980 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57C9EB #EB7957

analogous

#57EBC3 #57C9EB #577FEB

triadic

#57C9EB #EB57C9 #C9EB57

tetradic

#57C9EB #C357EB #EB7957 #7FEB57

square

#57C9EB #C357EB #EB7957 #7FEB57

split-complementary

#57C9EB #EB577F #EBC357

monochromatic

#158EB2 #20B7E4 #57C9EB #8EDBF2 #C4ECF8

Accessibility & contrast

On white

1.92

#57C9EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.96

#57C9EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57C9EB

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57C9EB	#FFFFFF	#000000	##000000
##57C9EB	1.00	1.92	10.96	10.96
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.96	21.00	1.00	1.00
##000000	10.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C4ED

Deuteranopia (green-blind)

#9FB4EB

Tritanopia (blue-blind)

#00D4D4

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #57c9eb;
/* rgb */ color: rgb(87, 201, 235);
/* oklch */ color: oklch(78.4% 0.113 220.7);

Tailwind

colors: {
  custom: {
    50: '#95d9f1',
    500: '#57c9eb',
    950: '#000000',
  },
}

SCSS

$custom: #57c9eb;
$custom-light: #95d9f1;
$custom-dark: #000000;

JSON

{
  "hex": "#57c9eb",
  "rgb": {
    "r": 87,
    "g": 201,
    "b": 235
  },
  "hsl": {
    "h": 193.784,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.78366,
    "c": 0.1128,
    "h": 220.7
  },
  "luminance": 0.49798
}

Semantic roles & 50–950 ramp

primary

#57C9EB

secondary

#E9C1B4

accent

#3A0ADB

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0F1416

muted

#7E8384

Preview Lab

Preview with #57C9EB

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

Preview Lab → · Contrast checker → · Palette generator →