#57A3F0#57A3F0

#57A3F0 is a light, vivid cyan. Relative luminance 0.345; OKLCH L 70.0% C 0.137 H 250.6°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#57A3F0
RGB	rgb(87, 163, 240)
HSL	hsl(210, 84%, 64%)
HSV	hsv(210, 64%, 94%)
CMYK	cmyk(63.7%, 32.1%, 0%, 5.9%)
CIE-LAB	lab(65.36, -0.18, -45.56)
CIE-LCH	lch(65.36, 45.56, 269.78°)
OKLab	oklab(70.04% -0.0453 -0.1289)
OKLCH	oklch(70.04% 0.137 250.6)
XYZ	xyz(32.7501, 34.5087, 87.3561)
Luminance	0.3451 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A3F0 #F0A457

analogous

#57F0F0 #57A3F0 #5857F0

triadic

#57A3F0 #F057A3 #A3F057

tetradic

#57A3F0 #F057F0 #F0A457 #57F058

square

#57A3F0 #F057F0 #F0A457 #57F058

split-complementary

#57A3F0 #F05857 #F0F057

monochromatic

#1166BC #1F84EB #57A3F0 #8FC2F5 #C7E1FA

Accessibility & contrast

On white

2.66

#57A3F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.90

#57A3F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A3F0

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A3F0	#FFFFFF	#000000	##000000
##57A3F0	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)

#82A7F3

Deuteranopia (green-blind)

#6D98EE

Tritanopia (blue-blind)

#00B5BF

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #57a3f0;
/* rgb */ color: rgb(87, 163, 240);
/* oklch */ color: oklch(70.0% 0.137 250.6);

Tailwind

colors: {
  custom: {
    50: '#94bdf5',
    500: '#57a3f0',
    950: '#000000',
  },
}

SCSS

$custom: #57a3f0;
$custom-light: #94bdf5;
$custom-dark: #000000;

JSON

{
  "hex": "#57a3f0",
  "rgb": {
    "r": 87,
    "g": 163,
    "b": 240
  },
  "hsl": {
    "h": 210.196,
    "s": 83.607,
    "l": 64.118
  },
  "oklch": {
    "l": 0.7004,
    "c": 0.1366,
    "h": 250.6
  },
  "luminance": 0.34512
}

Semantic roles & 50–950 ramp

primary

#57A3F0

secondary

#ECD2B7

accent

#7305E0

background

#F9FBFF

surface

#F2F6FE

border

#CCD0D6

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A3F0

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

Preview Lab → · Contrast checker → · Palette generator →