#57AAE9#57AAE9

#57AAE9 is a light, vivid cyan. Relative luminance 0.367; OKLCH L 71.2% C 0.123 H 243.7°. Best body text is #000000 at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#57AAE9
RGB	rgb(87, 170, 233)
HSL	hsl(206, 77%, 63%)
HSV	hsv(206, 63%, 91%)
CMYK	cmyk(62.7%, 27%, 0%, 8.6%)
CIE-LAB	lab(67.02, -6.39, -39.13)
CIE-LCH	lch(67.02, 39.65, 260.73°)
OKLab	oklab(71.24% -0.0544 -0.1102)
OKLCH	oklch(71.24% 0.123 243.7)
XYZ	xyz(33.0077, 36.6556, 82.4107)
Luminance	0.3666 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57AAE9 #E99657

analogous

#57E9DF #57AAE9 #5761E9

triadic

#57AAE9 #E957AA #AAE957

tetradic

#57AAE9 #DF57E9 #E99657 #61E957

square

#57AAE9 #DF57E9 #E99657 #61E957

split-complementary

#57AAE9 #E95761 #E9DF57

monochromatic

#176DAF #218FE2 #57AAE9 #8DC5F0 #C3E1F7

Accessibility & contrast

On white

2.52

#57AAE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.33

#57AAE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57AAE9

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57AAE9	#FFFFFF	#000000	##000000
##57AAE9	1.00	2.52	8.33	8.33
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.33	21.00	1.00	1.00
##000000	8.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8EABEC

Deuteranopia (green-blind)

#7A9DE8

Tritanopia (blue-blind)

#00B9C0

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #57aae9;
/* rgb */ color: rgb(87, 170, 233);
/* oklch */ color: oklch(71.2% 0.123 243.7);

Tailwind

colors: {
  custom: {
    50: '#93c3f0',
    500: '#57aae9',
    950: '#000000',
  },
}

SCSS

$custom: #57aae9;
$custom-light: #93c3f0;
$custom-dark: #000000;

JSON

{
  "hex": "#57aae9",
  "rgb": {
    "r": 87,
    "g": 170,
    "b": 233
  },
  "hsl": {
    "h": 205.89,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.71238,
    "c": 0.12286,
    "h": 243.7
  },
  "luminance": 0.36659
}

Semantic roles & 50–950 ramp

primary

#57AAE9

secondary

#E8CAB3

accent

#650CD9

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #57AAE9

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

Preview Lab → · Contrast checker → · Palette generator →