#57B5E5#57B5E5

#57B5E5 is a light, moderate cyan. Relative luminance 0.407; OKLCH L 73.5% C 0.113 H 233.5°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#57B5E5
RGB	rgb(87, 181, 229)
HSL	hsl(200, 73%, 62%)
HSV	hsv(200, 62%, 90%)
CMYK	cmyk(62%, 21%, 0%, 10.2%)
CIE-LAB	lab(69.98, -13.64, -32.34)
CIE-LCH	lch(69.98, 35.09, 247.13°)
OKLab	oklab(73.54% -0.0671 -0.0905)
OKLCH	oklch(73.54% 0.113 233.5)
XYZ	xyz(34.5917, 40.7277, 80.1518)
Luminance	0.4073 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B5E5 #E58757

analogous

#57E5CE #57B5E5 #576EE5

triadic

#57B5E5 #E557B5 #B5E557

tetradic

#57B5E5 #CE57E5 #E58757 #6EE557

square

#57B5E5 #CE57E5 #E58757 #6EE557

split-complementary

#57B5E5 #E5576E #E5CE57

monochromatic

#1A78A8 #229EDD #57B5E5 #8CCCED #C1E4F5

Accessibility & contrast

On white

2.30

#57B5E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.15

#57B5E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B5E5

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B5E5	#FFFFFF	#000000	##000000
##57B5E5	1.00	2.30	9.15	9.15
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.15	21.00	1.00	1.00
##000000	9.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB3E7

Deuteranopia (green-blind)

#8AA5E4

Tritanopia (blue-blind)

#00C2C5

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #57b5e5;
/* rgb */ color: rgb(87, 181, 229);
/* oklch */ color: oklch(73.5% 0.113 233.5);

Tailwind

colors: {
  custom: {
    50: '#93cbed',
    500: '#57b5e5',
    950: '#000000',
  },
}

SCSS

$custom: #57b5e5;
$custom-light: #93cbed;
$custom-dark: #000000;

JSON

{
  "hex": "#57b5e5",
  "rgb": {
    "r": 87,
    "g": 181,
    "b": 229
  },
  "hsl": {
    "h": 200.282,
    "s": 73.196,
    "l": 61.961
  },
  "oklch": {
    "l": 0.73536,
    "c": 0.11266,
    "h": 233.5
  },
  "luminance": 0.40731
}

Semantic roles & 50–950 ramp

primary

#57B5E5

secondary

#E6C3B2

accent

#5310D5

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B5E5

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

Preview Lab → · Contrast checker → · Palette generator →