#57B7EC#57B7EC

#57B7EC is a light, moderate cyan. Relative luminance 0.419; OKLCH L 74.3% C 0.118 H 235.6°. Best body text is #000000 at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#57B7EC
RGB	rgb(87, 183, 236)
HSL	hsl(201, 80%, 63%)
HSV	hsv(201, 63%, 93%)
CMYK	cmyk(63.1%, 22.5%, 0%, 7.5%)
CIE-LAB	lab(70.83, -12.52, -34.83)
CIE-LCH	lch(70.83, 37.01, 250.22°)
OKLab	oklab(74.3% -0.0668 -0.0977)
OKLCH	oklch(74.3% 0.118 235.6)
XYZ	xyz(35.9985, 41.9457, 85.5398)
Luminance	0.4195 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B7EC #EC8C57

analogous

#57ECD6 #57B7EC #576CEC

triadic

#57B7EC #EC57B7 #B7EC57

tetradic

#57B7EC #D657EC #EC8C57 #6CEC57

square

#57B7EC #D657EC #EC8C57 #6CEC57

split-complementary

#57B7EC #EC576C #ECD657

monochromatic

#147BB4 #209FE6 #57B7EC #8ECFF2 #C5E6F8

Accessibility & contrast

On white

2.24

#57B7EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.39

#57B7EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B7EC

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B7EC	#FFFFFF	#000000	##000000
##57B7EC	1.00	2.24	9.39	9.39
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.39	21.00	1.00	1.00
##000000	9.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB6EF

Deuteranopia (green-blind)

#89A7EB

Tritanopia (blue-blind)

#00C5C9

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #57b7ec;
/* rgb */ color: rgb(87, 183, 236);
/* oklch */ color: oklch(74.3% 0.118 235.6);

Tailwind

colors: {
  custom: {
    50: '#94ccf2',
    500: '#57b7ec',
    950: '#000000',
  },
}

SCSS

$custom: #57b7ec;
$custom-light: #94ccf2;
$custom-dark: #000000;

JSON

{
  "hex": "#57b7ec",
  "rgb": {
    "r": 87,
    "g": 183,
    "b": 236
  },
  "hsl": {
    "h": 201.342,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.74303,
    "c": 0.11831,
    "h": 235.6
  },
  "luminance": 0.41949
}

Semantic roles & 50–950 ramp

primary

#57B7EC

secondary

#EAC8B5

accent

#540ADC

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #57B7EC

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

Preview Lab → · Contrast checker → · Palette generator →