#57A6EC#57A6EC

#57A6EC is a light, vivid cyan. Relative luminance 0.354; OKLCH L 70.5% C 0.129 H 247.5°. Best body text is #000000 at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#57A6EC
RGB	rgb(87, 166, 236)
HSL	hsl(208, 80%, 63%)
HSV	hsv(208, 63%, 93%)
CMYK	cmyk(63.1%, 29.7%, 0%, 7.5%)
CIE-LAB	lab(66.02, -3.18, -42.33)
CIE-LCH	lch(66.02, 42.45, 265.70°)
OKLab	oklab(70.5% -0.0494 -0.1195)
OKLCH	oklch(70.5% 0.129 247.5)
XYZ	xyz(32.7014, 35.3516, 84.4408)
Luminance	0.3535 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A6EC #EC9D57

analogous

#57ECE7 #57A6EC #575BEC

triadic

#57A6EC #EC57A6 #A6EC57

tetradic

#57A6EC #E757EC #EC9D57 #5BEC57

square

#57A6EC #E757EC #EC9D57 #5BEC57

split-complementary

#57A6EC #EC575B #ECE757

monochromatic

#1469B4 #2089E6 #57A6EC #8EC3F2 #C5E0F8

Accessibility & contrast

On white

2.60

#57A6EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.07

#57A6EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A6EC

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A6EC	#FFFFFF	#000000	##000000
##57A6EC	1.00	2.60	8.07	8.07
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.07	21.00	1.00	1.00
##000000	8.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#87A8EF

Deuteranopia (green-blind)

#739AEB

Tritanopia (blue-blind)

#00B7BF

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #57a6ec;
/* rgb */ color: rgb(87, 166, 236);
/* oklch */ color: oklch(70.5% 0.129 247.5);

Tailwind

colors: {
  custom: {
    50: '#93c0f2',
    500: '#57a6ec',
    950: '#000000',
  },
}

SCSS

$custom: #57a6ec;
$custom-light: #93c0f2;
$custom-dark: #000000;

JSON

{
  "hex": "#57a6ec",
  "rgb": {
    "r": 87,
    "g": 166,
    "b": 236
  },
  "hsl": {
    "h": 208.188,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.70496,
    "c": 0.1293,
    "h": 247.5
  },
  "luminance": 0.35355
}

Semantic roles & 50–950 ramp

primary

#57A6EC

secondary

#EACEB5

accent

#6C0ADC

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A6EC

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

Preview Lab → · Contrast checker → · Palette generator →