#57B2F9#57B2F9

#57B2F9 is a light, vivid cyan. Relative luminance 0.407; OKLCH L 73.8% C 0.135 H 244.7°. Best body text is #000000 at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#57B2F9
RGB	rgb(87, 178, 249)
HSL	hsl(206, 93%, 66%)
HSV	hsv(206, 65%, 98%)
CMYK	cmyk(65.1%, 28.5%, 0%, 2.4%)
CIE-LAB	lab(69.97, -5.65, -43.23)
CIE-LCH	lch(69.97, 43.60, 262.55°)
OKLab	oklab(73.8% -0.0576 -0.122)
OKLCH	oklch(73.8% 0.135 244.7)
XYZ	xyz(36.9433, 40.7028, 95.5136)
Luminance	0.4071 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B2F9 #F99E57

analogous

#57F9EF #57B2F9 #5761F9

triadic

#57B2F9 #F957B2 #B2F957

tetradic

#57B2F9 #EF57F9 #F99E57 #61F957

square

#57B2F9 #EF57F9 #F99E57 #61F957

split-complementary

#57B2F9 #F95761 #F9EF57

monochromatic

#0777CE #1C97F7 #57B2F9 #92CDFB #CDE8FD

Accessibility & contrast

On white

2.30

#57B2F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.14

#57B2F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B2F9

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B2F9	#FFFFFF	#000000	##000000
##57B2F9	1.00	2.30	9.14	9.14
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.14	21.00	1.00	1.00
##000000	9.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92B4FC

Deuteranopia (green-blind)

#7CA4F8

Tritanopia (blue-blind)

#00C3CB

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #57b2f9;
/* rgb */ color: rgb(87, 178, 249);
/* oklch */ color: oklch(73.8% 0.135 244.7);

Tailwind

colors: {
  custom: {
    50: '#95c8fb',
    500: '#57b2f9',
    950: '#000000',
  },
}

SCSS

$custom: #57b2f9;
$custom-light: #95c8fb;
$custom-dark: #000000;

JSON

{
  "hex": "#57b2f9",
  "rgb": {
    "r": 87,
    "g": 178,
    "b": 249
  },
  "hsl": {
    "h": 206.296,
    "s": 93.103,
    "l": 65.882
  },
  "oklch": {
    "l": 0.73796,
    "c": 0.13491,
    "h": 244.7
  },
  "luminance": 0.40707
}

Semantic roles & 50–950 ramp

primary

#57B2F9

secondary

#F1D3BB

accent

#6500E6

background

#F9FCFF

surface

#F2F8FF

border

#CCD1D7

text

#0F1317

muted

#7E8285

Preview Lab

Preview with #57B2F9

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

Preview Lab → · Contrast checker → · Palette generator →