#57BFEF#57BFEF

#57BFEF is a light, moderate cyan. Relative luminance 0.455; OKLCH L 76.2% C 0.118 H 231.1°. Best body text is #000000 at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#57BFEF
RGB	rgb(87, 191, 239)
HSL	hsl(199, 83%, 64%)
HSV	hsv(199, 64%, 94%)
CMYK	cmyk(63.6%, 20.1%, 0%, 6.3%)
CIE-LAB	lab(73.23, -15.83, -32.75)
CIE-LCH	lch(73.23, 36.37, 244.19°)
OKLab	oklab(76.25% -0.0739 -0.0916)
OKLCH	oklch(76.25% 0.118 231.1)
XYZ	xyz(38.1352, 45.5159, 88.4203)
Luminance	0.4552 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57BFEF #EF8757

analogous

#57EFD3 #57BFEF #5773EF

triadic

#57BFEF #EF57BF #BFEF57

tetradic

#57BFEF #D357EF #EF8757 #73EF57

square

#57BFEF #D357EF #EF8757 #73EF57

split-complementary

#57BFEF #EF5773 #EFD357

monochromatic

#1285BA #1FAAEA #57BFEF #8FD4F4 #C7EAFA

Accessibility & contrast

On white

2.08

#57BFEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.10

#57BFEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57BFEF

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57BFEF	#FFFFFF	#000000	##000000
##57BFEF	1.00	2.08	10.10	10.10
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.10	21.00	1.00	1.00
##000000	10.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7BDF1

Deuteranopia (green-blind)

#92ADEE

Tritanopia (blue-blind)

#00CCCF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #57bfef;
/* rgb */ color: rgb(87, 191, 239);
/* oklch */ color: oklch(76.2% 0.118 231.1);

Tailwind

colors: {
  custom: {
    50: '#95d2f4',
    500: '#57bfef',
    950: '#000000',
  },
}

SCSS

$custom: #57bfef;
$custom-light: #95d2f4;
$custom-dark: #000000;

JSON

{
  "hex": "#57bfef",
  "rgb": {
    "r": 87,
    "g": 191,
    "b": 239
  },
  "hsl": {
    "h": 198.947,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.76249,
    "c": 0.11772,
    "h": 231.1
  },
  "luminance": 0.4552
}

Semantic roles & 50–950 ramp

primary

#57BFEF

secondary

#ECC7B6

accent

#4B06DF

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1417

muted

#7E8285

Preview Lab

Preview with #57BFEF

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

Preview Lab → · Contrast checker → · Palette generator →