#57B3DF#57B3DF

#57B3DF is a light, moderate cyan. Relative luminance 0.396; OKLCH L 72.8% C 0.108 H 231.6°. Best body text is #000000 at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#57B3DF
RGB	rgb(87, 179, 223)
HSL	hsl(199, 68%, 61%)
HSV	hsv(199, 61%, 87%)
CMYK	cmyk(61%, 19.7%, 0%, 12.5%)
CIE-LAB	lab(69.18, -14.43, -30.31)
CIE-LCH	lch(69.18, 33.57, 244.54°)
OKLab	oklab(72.82% -0.0671 -0.0847)
OKLCH	oklch(72.82% 0.108 231.6)
XYZ	xyz(33.3647, 39.5908, 75.6812)
Luminance	0.3959 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B3DF #DF8357

analogous

#57DFC7 #57B3DF #576FDF

triadic

#57B3DF #DF57B3 #B3DF57

tetradic

#57B3DF #C757DF #DF8357 #6FDF57

square

#57B3DF #C757DF #DF8357 #6FDF57

split-complementary

#57B3DF #DF576F #DFC757

monochromatic

#1E749E #289AD1 #57B3DF #8ACAE9 #BEE2F3

Accessibility & contrast

On white

2.35

#57B3DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.92

#57B3DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B3DF

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B3DF	#FFFFFF	#000000	##000000
##57B3DF	1.00	2.35	8.92	8.92
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.92	21.00	1.00	1.00
##000000	8.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DB1E1

Deuteranopia (green-blind)

#8AA3DE

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #57b3df;
/* rgb */ color: rgb(87, 179, 223);
/* oklch */ color: oklch(72.8% 0.108 231.6);

Tailwind

colors: {
  custom: {
    50: '#92c9e9',
    500: '#57b3df',
    950: '#000000',
  },
}

SCSS

$custom: #57b3df;
$custom-light: #92c9e9;
$custom-dark: #000000;

JSON

{
  "hex": "#57b3df",
  "rgb": {
    "r": 87,
    "g": 179,
    "b": 223
  },
  "hsl": {
    "h": 199.412,
    "s": 68,
    "l": 60.784
  },
  "oklch": {
    "l": 0.72816,
    "c": 0.10805,
    "h": 231.6
  },
  "luminance": 0.39594
}

Semantic roles & 50–950 ramp

primary

#57B3DF

secondary

#E3C0AF

accent

#5216D0

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B3DF

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

Preview Lab → · Contrast checker → · Palette generator →