#57ABE9#57ABE9

#57ABE9 is a light, vivid cyan. Relative luminance 0.370; OKLCH L 71.5% C 0.122 H 243.0°. Best body text is #000000 at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#57ABE9
RGB	rgb(87, 171, 233)
HSL	hsl(205, 77%, 63%)
HSV	hsv(205, 63%, 91%)
CMYK	cmyk(62.7%, 26.6%, 0%, 8.6%)
CIE-LAB	lab(67.30, -6.94, -38.69)
CIE-LCH	lch(67.30, 39.31, 259.83°)
OKLab	oklab(71.46% -0.0554 -0.1089)
OKLCH	oklch(71.46% 0.122 243)
XYZ	xyz(33.1958, 37.0320, 82.4734)
Luminance	0.3704 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57ABE9 #E99557

analogous

#57E9DE #57ABE9 #5762E9

triadic

#57ABE9 #E957AB #ABE957

tetradic

#57ABE9 #DE57E9 #E99557 #62E957

square

#57ABE9 #DE57E9 #E99557 #62E957

split-complementary

#57ABE9 #E95762 #E9DE57

monochromatic

#176EAF #2190E2 #57ABE9 #8DC6F0 #C3E1F7

Accessibility & contrast

On white

2.50

#57ABE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.41

#57ABE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57ABE9

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57ABE9	#FFFFFF	#000000	##000000
##57ABE9	1.00	2.50	8.41	8.41
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.41	21.00	1.00	1.00
##000000	8.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FACEC

Deuteranopia (green-blind)

#7B9DE8

Tritanopia (blue-blind)

#00BAC0

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #57abe9;
/* rgb */ color: rgb(87, 171, 233);
/* oklch */ color: oklch(71.5% 0.122 243.0);

Tailwind

colors: {
  custom: {
    50: '#93c3f0',
    500: '#57abe9',
    950: '#000000',
  },
}

SCSS

$custom: #57abe9;
$custom-light: #93c3f0;
$custom-dark: #000000;

JSON

{
  "hex": "#57abe9",
  "rgb": {
    "r": 87,
    "g": 171,
    "b": 233
  },
  "hsl": {
    "h": 205.479,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.71462,
    "c": 0.12217,
    "h": 243
  },
  "luminance": 0.37035
}

Semantic roles & 50–950 ramp

primary

#57ABE9

secondary

#E8CAB3

accent

#630CD9

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #57ABE9

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

Preview Lab → · Contrast checker → · Palette generator →