#57A8EB#57A8EB

#57A8EB is a light, vivid cyan. Relative luminance 0.360; OKLCH L 70.9% C 0.127 H 245.9°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#57A8EB
RGB	rgb(87, 168, 235)
HSL	hsl(207, 79%, 63%)
HSV	hsv(207, 63%, 92%)
CMYK	cmyk(63%, 28.5%, 0%, 7.8%)
CIE-LAB	lab(66.54, -4.63, -40.97)
CIE-LCH	lch(66.54, 41.23, 263.56°)
OKLab	oklab(70.89% -0.0518 -0.1155)
OKLCH	oklch(70.89% 0.127 245.9)
XYZ	xyz(32.9229, 36.0264, 83.7999)
Luminance	0.3603 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A8EB #EB9A57

analogous

#57EBE4 #57A8EB #575EEB

triadic

#57A8EB #EB57A8 #A8EB57

tetradic

#57A8EB #E457EB #EB9A57 #5EEB57

square

#57A8EB #E457EB #EB9A57 #5EEB57

split-complementary

#57A8EB #EB575E #EBE457

monochromatic

#156BB2 #208CE4 #57A8EB #8EC4F2 #C4E1F8

Accessibility & contrast

On white

2.56

#57A8EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.21

#57A8EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A8EB

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A8EB	#FFFFFF	#000000	##000000
##57A8EB	1.00	2.56	8.21	8.21
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.21	21.00	1.00	1.00
##000000	8.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BAAEE

Deuteranopia (green-blind)

#769BEA

Tritanopia (blue-blind)

#00B8BF

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #57a8eb;
/* rgb */ color: rgb(87, 168, 235);
/* oklch */ color: oklch(70.9% 0.127 245.9);

Tailwind

colors: {
  custom: {
    50: '#93c1f1',
    500: '#57a8eb',
    950: '#000000',
  },
}

SCSS

$custom: #57a8eb;
$custom-light: #93c1f1;
$custom-dark: #000000;

JSON

{
  "hex": "#57a8eb",
  "rgb": {
    "r": 87,
    "g": 168,
    "b": 235
  },
  "hsl": {
    "h": 207.162,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.7089,
    "c": 0.12658,
    "h": 245.9
  },
  "luminance": 0.3603
}

Semantic roles & 50–950 ramp

primary

#57A8EB

secondary

#E9CCB4

accent

#690ADB

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A8EB

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

Preview Lab → · Contrast checker → · Palette generator →