#57B5DF#57B5DF

#57B5DF is a light, moderate cyan. Relative luminance 0.404; OKLCH L 73.3% C 0.107 H 229.9°. Best body text is #000000 at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#57B5DF
RGB	rgb(87, 181, 223)
HSL	hsl(199, 68%, 61%)
HSV	hsv(199, 61%, 87%)
CMYK	cmyk(61%, 18.8%, 0%, 12.5%)
CIE-LAB	lab(69.75, -15.49, -29.42)
CIE-LCH	lch(69.75, 33.25, 242.23°)
OKLab	oklab(73.27% -0.0692 -0.0822)
OKLCH	oklch(73.27% 0.107 229.9)
XYZ	xyz(33.7685, 40.3983, 75.8158)
Luminance	0.4040 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B5DF #DF8157

analogous

#57DFC5 #57B5DF #5771DF

triadic

#57B5DF #DF57B5 #B5DF57

tetradic

#57B5DF #C557DF #DF8157 #71DF57

square

#57B5DF #C557DF #DF8157 #71DF57

split-complementary

#57B5DF #DF5771 #DFC557

monochromatic

#1E769E #289DD1 #57B5DF #8ACCE9 #BEE2F3

Accessibility & contrast

On white

2.31

#57B5DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.08

#57B5DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B5DF

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B5DF	#FFFFFF	#000000	##000000
##57B5DF	1.00	2.31	9.08	9.08
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.08	21.00	1.00	1.00
##000000	9.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B2E1

Deuteranopia (green-blind)

#8DA4DE

Tritanopia (blue-blind)

#00C1C3

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #57b5df;
/* rgb */ color: rgb(87, 181, 223);
/* oklch */ color: oklch(73.3% 0.107 229.9);

Tailwind

colors: {
  custom: {
    50: '#92cbe9',
    500: '#57b5df',
    950: '#000000',
  },
}

SCSS

$custom: #57b5df;
$custom-light: #92cbe9;
$custom-dark: #000000;

JSON

{
  "hex": "#57b5df",
  "rgb": {
    "r": 87,
    "g": 181,
    "b": 223
  },
  "hsl": {
    "h": 198.529,
    "s": 68,
    "l": 60.784
  },
  "oklch": {
    "l": 0.73274,
    "c": 0.10742,
    "h": 229.9
  },
  "luminance": 0.40402
}

Semantic roles & 50–950 ramp

primary

#57B5DF

secondary

#E3BFAF

accent

#4F16D0

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B5DF

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

Preview Lab → · Contrast checker → · Palette generator →