#57A5EC#57A5EC

#57A5EC is a light, vivid cyan. Relative luminance 0.350; OKLCH L 70.3% C 0.130 H 248.2°. Best body text is #000000 at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#57A5EC
RGB	rgb(87, 165, 236)
HSL	hsl(209, 80%, 63%)
HSV	hsv(209, 63%, 93%)
CMYK	cmyk(63.1%, 30.1%, 0%, 7.5%)
CIE-LAB	lab(65.74, -2.62, -42.77)
CIE-LCH	lch(65.74, 42.85, 266.50°)
OKLab	oklab(70.28% -0.0484 -0.1208)
OKLCH	oklch(70.28% 0.13 248.2)
XYZ	xyz(32.5203, 34.9894, 84.3804)
Luminance	0.3499 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A5EC #EC9E57

analogous

#57ECE9 #57A5EC #575AEC

triadic

#57A5EC #EC57A5 #A5EC57

tetradic

#57A5EC #E957EC #EC9E57 #5AEC57

square

#57A5EC #E957EC #EC9E57 #5AEC57

split-complementary

#57A5EC #EC575A #ECE957

monochromatic

#1468B4 #2088E6 #57A5EC #8EC2F2 #C5E0F8

Accessibility & contrast

On white

2.63

#57A5EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.00

#57A5EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A5EC

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A5EC	#FFFFFF	#000000	##000000
##57A5EC	1.00	2.63	8.00	8.00
#FFFFFF	2.63	1.00	21.00	21.00
#000000	8.00	21.00	1.00	1.00
##000000	8.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86A8EF

Deuteranopia (green-blind)

#7299EB

Tritanopia (blue-blind)

#00B6BE

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #57a5ec;
/* rgb */ color: rgb(87, 165, 236);
/* oklch */ color: oklch(70.3% 0.130 248.2);

Tailwind

colors: {
  custom: {
    50: '#93bff2',
    500: '#57a5ec',
    950: '#000000',
  },
}

SCSS

$custom: #57a5ec;
$custom-light: #93bff2;
$custom-dark: #000000;

JSON

{
  "hex": "#57a5ec",
  "rgb": {
    "r": 87,
    "g": 165,
    "b": 236
  },
  "hsl": {
    "h": 208.591,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.70275,
    "c": 0.13011,
    "h": 248.2
  },
  "luminance": 0.34993
}

Semantic roles & 50–950 ramp

primary

#57A5EC

secondary

#EACEB5

accent

#6E0ADC

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A5EC

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

Preview Lab → · Contrast checker → · Palette generator →