#57B4DC#57B4DC

#57B4DC is a light, moderate cyan. Relative luminance 0.398; OKLCH L 72.9% C 0.105 H 228.9°. Best body text is #000000 at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#57B4DC
RGB	rgb(87, 180, 220)
HSL	hsl(198, 66%, 60%)
HSV	hsv(198, 60%, 86%)
CMYK	cmyk(60.5%, 18.2%, 0%, 13.7%)
CIE-LAB	lab(69.35, -15.88, -28.40)
CIE-LCH	lch(69.35, 32.54, 240.78°)
OKLab	oklab(72.92% -0.0692 -0.0792)
OKLCH	oklch(72.92% 0.105 228.9)
XYZ	xyz(33.1650, 39.8328, 73.6370)
Luminance	0.3984 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B4DC #DC7F57

analogous

#57DCC1 #57B4DC #5772DC

triadic

#57B4DC #DC57B4 #B4DC57

tetradic

#57B4DC #C157DC #DC7F57 #72DC57

square

#57B4DC #C157DC #DC7F57 #72DC57

split-complementary

#57B4DC #DC5772 #DCC157

monochromatic

#207499 #2A9BCB #57B4DC #8ACBE7 #BCE1F1

Accessibility & contrast

On white

2.34

#57B4DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.97

#57B4DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B4DC

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B4DC	#FFFFFF	#000000	##000000
##57B4DC	1.00	2.34	8.97	8.97
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.97	21.00	1.00	1.00
##000000	8.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB1DE

Deuteranopia (green-blind)

#8DA3DB

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #57b4dc;
/* rgb */ color: rgb(87, 180, 220);
/* oklch */ color: oklch(72.9% 0.105 228.9);

Tailwind

colors: {
  custom: {
    50: '#92cae7',
    500: '#57b4dc',
    950: '#000000',
  },
}

SCSS

$custom: #57b4dc;
$custom-light: #92cae7;
$custom-dark: #000000;

JSON

{
  "hex": "#57b4dc",
  "rgb": {
    "r": 87,
    "g": 180,
    "b": 220
  },
  "hsl": {
    "h": 198.045,
    "s": 65.517,
    "l": 60.196
  },
  "oklch": {
    "l": 0.72916,
    "c": 0.10522,
    "h": 228.9
  },
  "luminance": 0.39836
}

Semantic roles & 50–950 ramp

primary

#57B4DC

secondary

#E1BDAE

accent

#4F18CD

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B4DC

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

Preview Lab → · Contrast checker → · Palette generator →