#57B7E9#57B7E9

#57B7E9 is a light, moderate cyan. Relative luminance 0.418; OKLCH L 74.2% C 0.116 H 234.1°. Best body text is #000000 at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#57B7E9
RGB	rgb(87, 183, 233)
HSL	hsl(201, 77%, 63%)
HSV	hsv(201, 63%, 91%)
CMYK	cmyk(62.7%, 21.5%, 0%, 8.6%)
CIE-LAB	lab(70.71, -13.46, -33.39)
CIE-LCH	lch(70.71, 36.00, 248.04°)
OKLab	oklab(74.17% -0.0678 -0.0935)
OKLCH	oklch(74.17% 0.116 234.1)
XYZ	xyz(35.5663, 41.7728, 83.2636)
Luminance	0.4178 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B7E9 #E98957

analogous

#57E9D2 #57B7E9 #576EE9

triadic

#57B7E9 #E957B7 #B7E957

tetradic

#57B7E9 #D257E9 #E98957 #6EE957

square

#57B7E9 #D257E9 #E98957 #6EE957

split-complementary

#57B7E9 #E9576E #E9D257

monochromatic

#177BAF #21A0E2 #57B7E9 #8DCEF0 #C3E5F7

Accessibility & contrast

On white

2.24

#57B7E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.36

#57B7E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B7E9

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B7E9	#FFFFFF	#000000	##000000
##57B7E9	1.00	2.24	9.36	9.36
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.36	21.00	1.00	1.00
##000000	9.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB5EB

Deuteranopia (green-blind)

#8BA6E8

Tritanopia (blue-blind)

#00C4C8

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #57b7e9;
/* rgb */ color: rgb(87, 183, 233);
/* oklch */ color: oklch(74.2% 0.116 234.1);

Tailwind

colors: {
  custom: {
    50: '#94ccf0',
    500: '#57b7e9',
    950: '#000000',
  },
}

SCSS

$custom: #57b7e9;
$custom-light: #94ccf0;
$custom-dark: #000000;

JSON

{
  "hex": "#57b7e9",
  "rgb": {
    "r": 87,
    "g": 183,
    "b": 233
  },
  "hsl": {
    "h": 200.548,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.74168,
    "c": 0.1155,
    "h": 234.1
  },
  "luminance": 0.41776
}

Semantic roles & 50–950 ramp

primary

#57B7E9

secondary

#E8C6B3

accent

#530CD9

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B7E9

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

Preview Lab → · Contrast checker → · Palette generator →