#57A4EB#57A4EB

#57A4EB is a light, vivid cyan. Relative luminance 0.346; OKLCH L 70.0% C 0.130 H 248.4°. Best body text is #000000 at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#57A4EB
RGB	rgb(87, 164, 235)
HSL	hsl(209, 79%, 63%)
HSV	hsv(209, 63%, 92%)
CMYK	cmyk(63%, 30.2%, 0%, 7.8%)
CIE-LAB	lab(65.41, -2.38, -42.74)
CIE-LCH	lch(65.41, 42.80, 266.81°)
OKLab	oklab(70% -0.0477 -0.1207)
OKLCH	oklch(70% 0.13 248.4)
XYZ	xyz(32.1958, 34.5722, 83.5575)
Luminance	0.3458 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A4EB #EB9E57

analogous

#57EBE8 #57A4EB #575AEB

triadic

#57A4EB #EB57A4 #A4EB57

tetradic

#57A4EB #E857EB #EB9E57 #5AEB57

square

#57A4EB #E857EB #EB9E57 #5AEB57

split-complementary

#57A4EB #EB575A #EBE857

monochromatic

#1567B2 #2086E4 #57A4EB #8EC2F2 #C4DFF8

Accessibility & contrast

On white

2.65

#57A4EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.91

#57A4EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A4EB

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A4EB	#FFFFFF	#000000	##000000
##57A4EB	1.00	2.65	7.91	7.91
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.91	21.00	1.00	1.00
##000000	7.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85A7EE

Deuteranopia (green-blind)

#7198EA

Tritanopia (blue-blind)

#00B5BD

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #57a4eb;
/* rgb */ color: rgb(87, 164, 235);
/* oklch */ color: oklch(70.0% 0.130 248.4);

Tailwind

colors: {
  custom: {
    50: '#93bef1',
    500: '#57a4eb',
    950: '#000000',
  },
}

SCSS

$custom: #57a4eb;
$custom-light: #93bef1;
$custom-dark: #000000;

JSON

{
  "hex": "#57a4eb",
  "rgb": {
    "r": 87,
    "g": 164,
    "b": 235
  },
  "hsl": {
    "h": 208.784,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.70003,
    "c": 0.12975,
    "h": 248.4
  },
  "luminance": 0.34575
}

Semantic roles & 50–950 ramp

primary

#57A4EB

secondary

#E9CEB4

accent

#6F0ADB

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A4EB

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

Preview Lab → · Contrast checker → · Palette generator →