#57A3EC#57A3EC

#57A3EC is a light, vivid cyan. Relative luminance 0.343; OKLCH L 69.8% C 0.132 H 249.4°. Best body text is #000000 at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#57A3EC
RGB	rgb(87, 163, 236)
HSL	hsl(209, 80%, 63%)
HSV	hsv(209, 63%, 93%)
CMYK	cmyk(63.1%, 30.9%, 0%, 7.5%)
CIE-LAB	lab(65.18, -1.49, -43.66)
CIE-LCH	lch(65.18, 43.68, 268.05°)
OKLab	oklab(69.83% -0.0464 -0.1233)
OKLCH	oklch(69.83% 0.132 249.4)
XYZ	xyz(32.1624, 34.2736, 84.2611)
Luminance	0.3428 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A3EC #ECA057

analogous

#57ECEA #57A3EC #5758EC

triadic

#57A3EC #EC57A3 #A3EC57

tetradic

#57A3EC #EA57EC #ECA057 #58EC57

square

#57A3EC #EA57EC #ECA057 #58EC57

split-complementary

#57A3EC #EC5758 #ECEA57

monochromatic

#1466B4 #2085E6 #57A3EC #8EC1F2 #C5DFF8

Accessibility & contrast

On white

2.67

#57A3EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.86

#57A3EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A3EC

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A3EC	#FFFFFF	#000000	##000000
##57A3EC	1.00	2.67	7.86	7.86
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.86	21.00	1.00	1.00
##000000	7.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#83A6EF

Deuteranopia (green-blind)

#6F98EB

Tritanopia (blue-blind)

#00B4BD

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #57a3ec;
/* rgb */ color: rgb(87, 163, 236);
/* oklch */ color: oklch(69.8% 0.132 249.4);

Tailwind

colors: {
  custom: {
    50: '#93bef2',
    500: '#57a3ec',
    950: '#000000',
  },
}

SCSS

$custom: #57a3ec;
$custom-light: #93bef2;
$custom-dark: #000000;

JSON

{
  "hex": "#57a3ec",
  "rgb": {
    "r": 87,
    "g": 163,
    "b": 236
  },
  "hsl": {
    "h": 209.396,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.69834,
    "c": 0.13177,
    "h": 249.4
  },
  "luminance": 0.34277
}

Semantic roles & 50–950 ramp

primary

#57A3EC

secondary

#EACFB5

accent

#710ADC

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A3EC

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

Preview Lab → · Contrast checker → · Palette generator →