#57A3EF#57A3EF

#57A3EF is a light, vivid cyan. Relative luminance 0.345; OKLCH L 70.0% C 0.135 H 250.3°. Best body text is #000000 at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#57A3EF
RGB	rgb(87, 163, 239)
HSL	hsl(210, 83%, 64%)
HSV	hsv(210, 64%, 94%)
CMYK	cmyk(63.6%, 31.8%, 0%, 6.3%)
CIE-LAB	lab(65.32, -0.50, -45.08)
CIE-LCH	lch(65.32, 45.09, 269.36°)
OKLab	oklab(69.99% -0.0455 -0.1275)
OKLCH	oklch(69.99% 0.135 250.3)
XYZ	xyz(32.6019, 34.4494, 86.5759)
Luminance	0.3445 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A3EF #EFA357

analogous

#57EFEF #57A3EF #5757EF

triadic

#57A3EF #EF57A3 #A3EF57

tetradic

#57A3EF #EF57EF #EFA357 #57EF57

square

#57A3EF #EF57EF #EFA357 #57EF57

split-complementary

#57A3EF #EF5757 #EFEF57

monochromatic

#1266BA #1F84EA #57A3EF #8FC2F4 #C7E0FA

Accessibility & contrast

On white

2.66

#57A3EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.89

#57A3EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A3EF

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A3EF	#FFFFFF	#000000	##000000
##57A3EF	1.00	2.66	7.89	7.89
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.89	21.00	1.00	1.00
##000000	7.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#82A7F2

Deuteranopia (green-blind)

#6D98ED

Tritanopia (blue-blind)

#00B5BE

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #57a3ef;
/* rgb */ color: rgb(87, 163, 239);
/* oklch */ color: oklch(70.0% 0.135 250.3);

Tailwind

colors: {
  custom: {
    50: '#94bdf4',
    500: '#57a3ef',
    950: '#000000',
  },
}

SCSS

$custom: #57a3ef;
$custom-light: #94bdf4;
$custom-dark: #000000;

JSON

{
  "hex": "#57a3ef",
  "rgb": {
    "r": 87,
    "g": 163,
    "b": 239
  },
  "hsl": {
    "h": 210,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.69988,
    "c": 0.13539,
    "h": 250.3
  },
  "luminance": 0.34453
}

Semantic roles & 50–950 ramp

primary

#57A3EF

secondary

#ECD1B6

accent

#7306DF

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A3EF

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

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