#57A4EA#57A4EA

#57A4EA is a light, vivid cyan. Relative luminance 0.345; OKLCH L 70.0% C 0.129 H 248.1°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#57A4EA
RGB	rgb(87, 164, 234)
HSL	hsl(209, 78%, 63%)
HSV	hsv(209, 63%, 92%)
CMYK	cmyk(62.8%, 29.9%, 0%, 8.2%)
CIE-LAB	lab(65.37, -2.71, -42.26)
CIE-LCH	lch(65.37, 42.35, 266.34°)
OKLab	oklab(69.95% -0.048 -0.1193)
OKLCH	oklch(69.95% 0.129 248.1)
XYZ	xyz(32.0517, 34.5145, 82.7988)
Luminance	0.3452 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A4EA #EA9D57

analogous

#57EAE6 #57A4EA #575BEA

triadic

#57A4EA #EA57A4 #A4EA57

tetradic

#57A4EA #E657EA #EA9D57 #5BEA57

square

#57A4EA #E657EA #EA9D57 #5BEA57

split-complementary

#57A4EA #EA575B #EAE657

monochromatic

#1667B1 #2187E3 #57A4EA #8DC1F1 #C4DFF8

Accessibility & contrast

On white

2.66

#57A4EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.90

#57A4EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A4EA

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A4EA	#FFFFFF	#000000	##000000
##57A4EA	1.00	2.66	7.90	7.90
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.90	21.00	1.00	1.00
##000000	7.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86A7ED

Deuteranopia (green-blind)

#7298E9

Tritanopia (blue-blind)

#00B5BD

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #57a4ea;
/* rgb */ color: rgb(87, 164, 234);
/* oklch */ color: oklch(70.0% 0.129 248.1);

Tailwind

colors: {
  custom: {
    50: '#93bef1',
    500: '#57a4ea',
    950: '#000000',
  },
}

SCSS

$custom: #57a4ea;
$custom-light: #93bef1;
$custom-dark: #000000;

JSON

{
  "hex": "#57a4ea",
  "rgb": {
    "r": 87,
    "g": 164,
    "b": 234
  },
  "hsl": {
    "h": 208.571,
    "s": 77.778,
    "l": 62.941
  },
  "oklch": {
    "l": 0.69953,
    "c": 0.12856,
    "h": 248.1
  },
  "luminance": 0.34518
}

Semantic roles & 50–950 ramp

primary

#57A4EA

secondary

#E9CDB4

accent

#6E0BDA

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #57A4EA

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

Preview Lab → · Contrast checker → · Palette generator →