#57BDEF#57BDEF

#57BDEF is a light, moderate cyan. Relative luminance 0.447; OKLCH L 75.8% C 0.118 H 232.7°. Best body text is #000000 at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#57BDEF
RGB	rgb(87, 189, 239)
HSL	hsl(200, 83%, 64%)
HSV	hsv(200, 64%, 94%)
CMYK	cmyk(63.6%, 20.9%, 0%, 6.3%)
CIE-LAB	lab(72.66, -14.78, -33.63)
CIE-LCH	lch(72.66, 36.73, 246.27°)
OKLab	oklab(75.8% -0.0718 -0.0942)
OKLCH	oklch(75.8% 0.118 232.7)
XYZ	xyz(37.7020, 44.6495, 88.2759)
Luminance	0.4465 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57BDEF #EF8957

analogous

#57EFD5 #57BDEF #5771EF

triadic

#57BDEF #EF57BD #BDEF57

tetradic

#57BDEF #D557EF #EF8957 #71EF57

square

#57BDEF #D557EF #EF8957 #71EF57

split-complementary

#57BDEF #EF5771 #EFD557

monochromatic

#1283BA #1FA7EA #57BDEF #8FD3F4 #C7E9FA

Accessibility & contrast

On white

2.11

#57BDEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.93

#57BDEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57BDEF

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57BDEF	#FFFFFF	#000000	##000000
##57BDEF	1.00	2.11	9.93	9.93
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.93	21.00	1.00	1.00
##000000	9.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4BBF1

Deuteranopia (green-blind)

#8FABEE

Tritanopia (blue-blind)

#00CACE

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #57bdef;
/* rgb */ color: rgb(87, 189, 239);
/* oklch */ color: oklch(75.8% 0.118 232.7);

Tailwind

colors: {
  custom: {
    50: '#95d0f4',
    500: '#57bdef',
    950: '#000000',
  },
}

SCSS

$custom: #57bdef;
$custom-light: #95d0f4;
$custom-dark: #000000;

JSON

{
  "hex": "#57bdef",
  "rgb": {
    "r": 87,
    "g": 189,
    "b": 239
  },
  "hsl": {
    "h": 199.737,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.75795,
    "c": 0.11847,
    "h": 232.7
  },
  "luminance": 0.44653
}

Semantic roles & 50–950 ramp

primary

#57BDEF

secondary

#ECC8B6

accent

#4E06DF

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1417

muted

#7E8285

Preview Lab

Preview with #57BDEF

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

Preview Lab → · Contrast checker → · Palette generator →