#57B5DD#57B5DD

#57B5DD is a light, moderate cyan. Relative luminance 0.403; OKLCH L 73.2% C 0.106 H 228.6°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#57B5DD
RGB	rgb(87, 181, 221)
HSL	hsl(198, 66%, 60%)
HSV	hsv(198, 61%, 87%)
CMYK	cmyk(60.6%, 18.1%, 0%, 13.3%)
CIE-LAB	lab(69.68, -16.11, -28.44)
CIE-LCH	lch(69.68, 32.69, 240.48°)
OKLab	oklab(73.19% -0.0699 -0.0794)
OKLCH	oklch(73.19% 0.106 228.6)
XYZ	xyz(33.5004, 40.2911, 74.4041)
Luminance	0.4029 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B5DD #DD7F57

analogous

#57DDC2 #57B5DD #5772DD

triadic

#57B5DD #DD57B5 #B5DD57

tetradic

#57B5DD #C257DD #DD7F57 #72DD57

square

#57B5DD #C257DD #DD7F57 #72DD57

split-complementary

#57B5DD #DD5772 #DDC257

monochromatic

#1F769A #2A9CCD #57B5DD #8ACBE7 #BDE2F2

Accessibility & contrast

On white

2.32

#57B5DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.06

#57B5DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B5DD

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B5DD	#FFFFFF	#000000	##000000
##57B5DD	1.00	2.32	9.06	9.06
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.06	21.00	1.00	1.00
##000000	9.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B2DF

Deuteranopia (green-blind)

#8DA4DC

Tritanopia (blue-blind)

#00C0C2

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #57b5dd;
/* rgb */ color: rgb(87, 181, 221);
/* oklch */ color: oklch(73.2% 0.106 228.6);

Tailwind

colors: {
  custom: {
    50: '#92cbe7',
    500: '#57b5dd',
    950: '#000000',
  },
}

SCSS

$custom: #57b5dd;
$custom-light: #92cbe7;
$custom-dark: #000000;

JSON

{
  "hex": "#57b5dd",
  "rgb": {
    "r": 87,
    "g": 181,
    "b": 221
  },
  "hsl": {
    "h": 197.91,
    "s": 66.337,
    "l": 60.392
  },
  "oklch": {
    "l": 0.73189,
    "c": 0.10577,
    "h": 228.6
  },
  "luminance": 0.40294
}

Semantic roles & 50–950 ramp

primary

#57B5DD

secondary

#E1BEAE

accent

#4E17CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B5DD

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

Preview Lab → · Contrast checker → · Palette generator →