#57BFE9#57BFE9

#57BFE9 is a light, moderate cyan. Relative luminance 0.452; OKLCH L 76.0% C 0.113 H 227.7°. Best body text is #000000 at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#57BFE9
RGB	rgb(87, 191, 233)
HSL	hsl(197, 77%, 63%)
HSV	hsv(197, 63%, 91%)
CMYK	cmyk(62.7%, 18%, 0%, 8.6%)
CIE-LAB	lab(73.00, -17.68, -29.85)
CIE-LCH	lch(73.00, 34.70, 239.36°)
OKLab	oklab(75.99% -0.076 -0.0834)
OKLCH	oklch(75.99% 0.113 227.7)
XYZ	xyz(37.2635, 45.1672, 83.8293)
Luminance	0.4517 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57BFE9 #E98157

analogous

#57E9CA #57BFE9 #5776E9

triadic

#57BFE9 #E957BF #BFE957

tetradic

#57BFE9 #CA57E9 #E98157 #76E957

square

#57BFE9 #CA57E9 #E98157 #76E957

split-complementary

#57BFE9 #E95776 #E9CA57

monochromatic

#1783AF #21AAE2 #57BFE9 #8DD4F0 #C3E8F7

Accessibility & contrast

On white

2.09

#57BFE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.03

#57BFE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57BFE9

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57BFE9	#FFFFFF	#000000	##000000
##57BFE9	1.00	2.09	10.03	10.03
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.03	21.00	1.00	1.00
##000000	10.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BCEB

Deuteranopia (green-blind)

#94ADE8

Tritanopia (blue-blind)

#00CBCD

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #57bfe9;
/* rgb */ color: rgb(87, 191, 233);
/* oklch */ color: oklch(76.0% 0.113 227.7);

Tailwind

colors: {
  custom: {
    50: '#94d2f0',
    500: '#57bfe9',
    950: '#000000',
  },
}

SCSS

$custom: #57bfe9;
$custom-light: #94d2f0;
$custom-dark: #000000;

JSON

{
  "hex": "#57bfe9",
  "rgb": {
    "r": 87,
    "g": 191,
    "b": 233
  },
  "hsl": {
    "h": 197.26,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.75991,
    "c": 0.11282,
    "h": 227.7
  },
  "luminance": 0.45171
}

Semantic roles & 50–950 ramp

primary

#57BFE9

secondary

#E8C3B3

accent

#470CD9

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1416

muted

#7E8284

Preview Lab

Preview with #57BFE9

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

Preview Lab → · Contrast checker → · Palette generator →