#57B1DF#57B1DF

#57B1DF is a light, moderate cyan. Relative luminance 0.388; OKLCH L 72.4% C 0.109 H 233.3°. Best body text is #000000 at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#57B1DF
RGB	rgb(87, 177, 223)
HSL	hsl(200, 68%, 61%)
HSV	hsv(200, 61%, 87%)
CMYK	cmyk(61%, 20.6%, 0%, 12.5%)
CIE-LAB	lab(68.60, -13.36, -31.19)
CIE-LCH	lch(68.60, 33.93, 246.81°)
OKLab	oklab(72.36% -0.065 -0.0873)
OKLCH	oklch(72.36% 0.109 233.3)
XYZ	xyz(32.9668, 38.7950, 75.5486)
Luminance	0.3880 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B1DF #DF8557

analogous

#57DFC9 #57B1DF #576DDF

triadic

#57B1DF #DF57B1 #B1DF57

tetradic

#57B1DF #C957DF #DF8557 #6DDF57

square

#57B1DF #C957DF #DF8557 #6DDF57

split-complementary

#57B1DF #DF576D #DFC957

monochromatic

#1E729E #2898D1 #57B1DF #8AC9E9 #BEE1F3

Accessibility & contrast

On white

2.40

#57B1DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.76

#57B1DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B1DF

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B1DF	#FFFFFF	#000000	##000000
##57B1DF	1.00	2.40	8.76	8.76
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.76	21.00	1.00	1.00
##000000	8.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BAFE1

Deuteranopia (green-blind)

#88A1DE

Tritanopia (blue-blind)

#00BDC0

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #57b1df;
/* rgb */ color: rgb(87, 177, 223);
/* oklch */ color: oklch(72.4% 0.109 233.3);

Tailwind

colors: {
  custom: {
    50: '#92c8e9',
    500: '#57b1df',
    950: '#000000',
  },
}

SCSS

$custom: #57b1df;
$custom-light: #92c8e9;
$custom-dark: #000000;

JSON

{
  "hex": "#57b1df",
  "rgb": {
    "r": 87,
    "g": 177,
    "b": 223
  },
  "hsl": {
    "h": 200.294,
    "s": 68,
    "l": 60.784
  },
  "oklch": {
    "l": 0.72359,
    "c": 0.1088,
    "h": 233.3
  },
  "luminance": 0.38798
}

Semantic roles & 50–950 ramp

primary

#57B1DF

secondary

#E3C1AF

accent

#5516D0

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B1DF

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

Preview Lab → · Contrast checker → · Palette generator →