#57B8F6#57B8F6

#57B8F6 is a light, vivid cyan. Relative luminance 0.430; OKLCH L 75.0% C 0.128 H 239.7°. Best body text is #000000 at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#57B8F6
RGB	rgb(87, 184, 246)
HSL	hsl(203, 90%, 65%)
HSV	hsv(203, 65%, 96%)
CMYK	cmyk(64.6%, 25.2%, 0%, 3.5%)
CIE-LAB	lab(71.53, -9.90, -39.18)
CIE-LCH	lch(71.53, 40.41, 255.82°)
OKLab	oklab(74.99% -0.0645 -0.1102)
OKLCH	oklch(74.99% 0.128 239.7)
XYZ	xyz(37.6992, 42.9571, 93.4757)
Luminance	0.4296 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B8F6 #F69557

analogous

#57F6E4 #57B8F6 #5768F6

triadic

#57B8F6 #F657B8 #B8F657

tetradic

#57B8F6 #E457F6 #F69557 #68F657

square

#57B8F6 #E457F6 #F69557 #68F657

split-complementary

#57B8F6 #F65768 #F6E457

monochromatic

#0B7EC8 #1D9FF3 #57B8F6 #91D1F9 #CBE9FC

Accessibility & contrast

On white

2.19

#57B8F6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.59

#57B8F6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B8F6

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B8F6	#FFFFFF	#000000	##000000
##57B8F6	1.00	2.19	9.59	9.59
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.59	21.00	1.00	1.00
##000000	9.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB8F9

Deuteranopia (green-blind)

#86A8F5

Tritanopia (blue-blind)

#00C8CD

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #57b8f6;
/* rgb */ color: rgb(87, 184, 246);
/* oklch */ color: oklch(75.0% 0.128 239.7);

Tailwind

colors: {
  custom: {
    50: '#95cdf9',
    500: '#57b8f6',
    950: '#000000',
  },
}

SCSS

$custom: #57b8f6;
$custom-light: #95cdf9;
$custom-dark: #000000;

JSON

{
  "hex": "#57b8f6",
  "rgb": {
    "r": 87,
    "g": 184,
    "b": 246
  },
  "hsl": {
    "h": 203.396,
    "s": 89.831,
    "l": 65.294
  },
  "oklch": {
    "l": 0.74987,
    "c": 0.12768,
    "h": 239.7
  },
  "luminance": 0.42961
}

Semantic roles & 50–950 ramp

primary

#57B8F6

secondary

#EFCFBA

accent

#5900E6

background

#F9FCFF

surface

#F2F8FF

border

#CCD1D7

text

#0F1317

muted

#7E8285

Preview Lab

Preview with #57B8F6

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

Preview Lab → · Contrast checker → · Palette generator →