#57B3F4#57B3F4

#57B3F4 is a light, vivid cyan. Relative luminance 0.408; OKLCH L 73.8% C 0.129 H 242.2°. Best body text is #000000 at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#57B3F4
RGB	rgb(87, 179, 244)
HSL	hsl(205, 88%, 65%)
HSV	hsv(205, 64%, 96%)
CMYK	cmyk(64.3%, 26.6%, 0%, 4.3%)
CIE-LAB	lab(70.03, -7.82, -40.42)
CIE-LCH	lch(70.03, 41.17, 259.06°)
OKLab	oklab(73.78% -0.0601 -0.1138)
OKLCH	oklch(73.78% 0.129 242.2)
XYZ	xyz(36.3735, 40.7944, 91.5276)
Luminance	0.4080 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B3F4 #F49857

analogous

#57F4E7 #57B3F4 #5764F4

triadic

#57B3F4 #F457B3 #B3F457

tetradic

#57B3F4 #E757F4 #F49857 #64F457

square

#57B3F4 #E757F4 #F49857 #64F457

split-complementary

#57B3F4 #F45764 #F4E757

monochromatic

#0D78C4 #1E99F0 #57B3F4 #90CDF8 #CAE7FC

Accessibility & contrast

On white

2.29

#57B3F4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.16

#57B3F4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B3F4

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B3F4	#FFFFFF	#000000	##000000
##57B3F4	1.00	2.29	9.16	9.16
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.16	21.00	1.00	1.00
##000000	9.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96B4F7

Deuteranopia (green-blind)

#80A4F3

Tritanopia (blue-blind)

#00C3C9

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #57b3f4;
/* rgb */ color: rgb(87, 179, 244);
/* oklch */ color: oklch(73.8% 0.129 242.2);

Tailwind

colors: {
  custom: {
    50: '#95c9f8',
    500: '#57b3f4',
    950: '#000000',
  },
}

SCSS

$custom: #57b3f4;
$custom-light: #95c9f8;
$custom-dark: #000000;

JSON

{
  "hex": "#57b3f4",
  "rgb": {
    "r": 87,
    "g": 179,
    "b": 244
  },
  "hsl": {
    "h": 204.841,
    "s": 87.709,
    "l": 64.902
  },
  "oklch": {
    "l": 0.73776,
    "c": 0.12874,
    "h": 242.2
  },
  "luminance": 0.40798
}

Semantic roles & 50–950 ramp

primary

#57B3F4

secondary

#EECFB9

accent

#5F01E4

background

#F9FCFF

surface

#F2F8FF

border

#CCD1D7

text

#0F1317

muted

#7E8285

Preview Lab

Preview with #57B3F4

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

Preview Lab → · Contrast checker → · Palette generator →