#57A4EF#57A4EF

#57A4EF is a light, vivid cyan. Relative luminance 0.348; OKLCH L 70.2% C 0.135 H 249.8°. Best body text is #000000 at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#57A4EF
RGB	rgb(87, 164, 239)
HSL	hsl(210, 83%, 64%)
HSV	hsv(210, 64%, 94%)
CMYK	cmyk(63.6%, 31.4%, 0%, 6.3%)
CIE-LAB	lab(65.60, -1.07, -44.64)
CIE-LCH	lch(65.60, 44.66, 268.62°)
OKLab	oklab(70.21% -0.0465 -0.1262)
OKLCH	oklch(70.21% 0.135 249.8)
XYZ	xyz(32.7802, 34.8059, 86.6353)
Luminance	0.3481 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A4EF #EFA257

analogous

#57EFEE #57A4EF #5758EF

triadic

#57A4EF #EF57A4 #A4EF57

tetradic

#57A4EF #EE57EF #EFA257 #58EF57

square

#57A4EF #EE57EF #EFA257 #58EF57

split-complementary

#57A4EF #EF5758 #EFEE57

monochromatic

#1267BA #1F86EA #57A4EF #8FC2F4 #C7E1FA

Accessibility & contrast

On white

2.64

#57A4EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.96

#57A4EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A4EF

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A4EF	#FFFFFF	#000000	##000000
##57A4EF	1.00	2.64	7.96	7.96
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.96	21.00	1.00	1.00
##000000	7.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#83A7F2

Deuteranopia (green-blind)

#6F99EE

Tritanopia (blue-blind)

#00B6BF

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #57a4ef;
/* rgb */ color: rgb(87, 164, 239);
/* oklch */ color: oklch(70.2% 0.135 249.8);

Tailwind

colors: {
  custom: {
    50: '#94bef4',
    500: '#57a4ef',
    950: '#000000',
  },
}

SCSS

$custom: #57a4ef;
$custom-light: #94bef4;
$custom-dark: #000000;

JSON

{
  "hex": "#57a4ef",
  "rgb": {
    "r": 87,
    "g": 164,
    "b": 239
  },
  "hsl": {
    "h": 209.605,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.70207,
    "c": 0.13452,
    "h": 249.8
  },
  "luminance": 0.34809
}

Semantic roles & 50–950 ramp

primary

#57A4EF

secondary

#ECD1B6

accent

#7106DF

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A4EF

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

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