#57A5EE#57A5EE

#57A5EE is a light, vivid cyan. Relative luminance 0.351; OKLCH L 70.4% C 0.132 H 248.8°. Best body text is #000000 at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#57A5EE
RGB	rgb(87, 165, 238)
HSL	hsl(209, 82%, 64%)
HSV	hsv(209, 63%, 93%)
CMYK	cmyk(63.4%, 30.7%, 0%, 6.7%)
CIE-LAB	lab(65.83, -1.97, -43.73)
CIE-LCH	lch(65.83, 43.77, 267.43°)
OKLab	oklab(70.38% -0.0478 -0.1235)
OKLCH	oklch(70.38% 0.132 248.8)
XYZ	xyz(32.8125, 35.1063, 85.9193)
Luminance	0.3511 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A5EE #EEA057

analogous

#57EEEC #57A5EE #5759EE

triadic

#57A5EE #EE57A5 #A5EE57

tetradic

#57A5EE #EC57EE #EEA057 #59EE57

square

#57A5EE #EC57EE #EEA057 #59EE57

split-complementary

#57A5EE #EE5759 #EEEC57

monochromatic

#1368B8 #1F87E8 #57A5EE #8FC3F4 #C6E1F9

Accessibility & contrast

On white

2.62

#57A5EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.02

#57A5EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A5EE

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A5EE	#FFFFFF	#000000	##000000
##57A5EE	1.00	2.62	8.02	8.02
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.02	21.00	1.00	1.00
##000000	8.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85A8F1

Deuteranopia (green-blind)

#7199ED

Tritanopia (blue-blind)

#00B6BF

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #57a5ee;
/* rgb */ color: rgb(87, 165, 238);
/* oklch */ color: oklch(70.4% 0.132 248.8);

Tailwind

colors: {
  custom: {
    50: '#94bff4',
    500: '#57a5ee',
    950: '#000000',
  },
}

SCSS

$custom: #57a5ee;
$custom-light: #94bff4;
$custom-dark: #000000;

JSON

{
  "hex": "#57a5ee",
  "rgb": {
    "r": 87,
    "g": 165,
    "b": 238
  },
  "hsl": {
    "h": 209.007,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.70376,
    "c": 0.13248,
    "h": 248.8
  },
  "luminance": 0.3511
}

Semantic roles & 50–950 ramp

primary

#57A5EE

secondary

#EBD0B6

accent

#6F08DE

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A5EE

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

Preview Lab → · Contrast checker → · Palette generator →