#57B0EE#57B0EE

#57B0EE is a light, vivid cyan. Relative luminance 0.393; OKLCH L 72.8% C 0.124 H 241.7°. Best body text is #000000 at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#57B0EE
RGB	rgb(87, 176, 238)
HSL	hsl(205, 82%, 64%)
HSV	hsv(205, 63%, 93%)
CMYK	cmyk(63.4%, 26.1%, 0%, 6.7%)
CIE-LAB	lab(68.93, -8.09, -38.88)
CIE-LCH	lch(68.93, 39.71, 258.24°)
OKLab	oklab(72.82% -0.059 -0.1094)
OKLCH	oklch(72.82% 0.124 241.7)
XYZ	xyz(34.8826, 39.2464, 86.6093)
Luminance	0.3925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B0EE #EE9557

analogous

#57EEE1 #57B0EE #5764EE

triadic

#57B0EE #EE57B0 #B0EE57

tetradic

#57B0EE #E157EE #EE9557 #64EE57

square

#57B0EE #E157EE #EE9557 #64EE57

split-complementary

#57B0EE #EE5764 #EEE157

monochromatic

#1374B8 #1F96E8 #57B0EE #8FCAF4 #C6E4F9

Accessibility & contrast

On white

2.37

#57B0EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.85

#57B0EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B0EE

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B0EE	#FFFFFF	#000000	##000000
##57B0EE	1.00	2.37	8.85	8.85
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.85	21.00	1.00	1.00
##000000	8.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94B1F1

Deuteranopia (green-blind)

#7FA2ED

Tritanopia (blue-blind)

#00BFC5

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #57b0ee;
/* rgb */ color: rgb(87, 176, 238);
/* oklch */ color: oklch(72.8% 0.124 241.7);

Tailwind

colors: {
  custom: {
    50: '#94c7f3',
    500: '#57b0ee',
    950: '#000000',
  },
}

SCSS

$custom: #57b0ee;
$custom-light: #94c7f3;
$custom-dark: #000000;

JSON

{
  "hex": "#57b0ee",
  "rgb": {
    "r": 87,
    "g": 176,
    "b": 238
  },
  "hsl": {
    "h": 204.636,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.7282,
    "c": 0.12428,
    "h": 241.7
  },
  "luminance": 0.3925
}

Semantic roles & 50–950 ramp

primary

#57B0EE

secondary

#EBCCB6

accent

#6008DE

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #57B0EE

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

Preview Lab → · Contrast checker → · Palette generator →