#57B0F3#57B0F3

#57B0F3 is a light, vivid cyan. Relative luminance 0.395; OKLCH L 73.1% C 0.130 H 243.7°. Best body text is #000000 at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#57B0F3
RGB	rgb(87, 176, 243)
HSL	hsl(206, 87%, 65%)
HSV	hsv(206, 64%, 95%)
CMYK	cmyk(64.2%, 27.6%, 0%, 4.7%)
CIE-LAB	lab(69.14, -6.49, -41.27)
CIE-LCH	lch(69.14, 41.77, 261.07°)
OKLab	oklab(73.06% -0.0574 -0.1163)
OKLCH	oklch(73.06% 0.13 243.7)
XYZ	xyz(35.6274, 39.5443, 90.5319)
Luminance	0.3955 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B0F3 #F39A57

analogous

#57F3E8 #57B0F3 #5762F3

triadic

#57B0F3 #F357B0 #B0F357

tetradic

#57B0F3 #E857F3 #F39A57 #62F357

square

#57B0F3 #E857F3 #F39A57 #62F357

split-complementary

#57B0F3 #F35762 #F3E857

monochromatic

#0E74C2 #1E95EF #57B0F3 #90CBF7 #C9E6FB

Accessibility & contrast

On white

2.36

#57B0F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.91

#57B0F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B0F3

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B0F3	#FFFFFF	#000000	##000000
##57B0F3	1.00	2.36	8.91	8.91
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.91	21.00	1.00	1.00
##000000	8.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92B1F6

Deuteranopia (green-blind)

#7DA2F2

Tritanopia (blue-blind)

#00C0C7

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #57b0f3;
/* rgb */ color: rgb(87, 176, 243);
/* oklch */ color: oklch(73.1% 0.130 243.7);

Tailwind

colors: {
  custom: {
    50: '#95c7f7',
    500: '#57b0f3',
    950: '#000000',
  },
}

SCSS

$custom: #57b0f3;
$custom-light: #95c7f7;
$custom-dark: #000000;

JSON

{
  "hex": "#57b0f3",
  "rgb": {
    "r": 87,
    "g": 176,
    "b": 243
  },
  "hsl": {
    "h": 205.769,
    "s": 86.667,
    "l": 64.706
  },
  "oklch": {
    "l": 0.7306,
    "c": 0.12971,
    "h": 243.7
  },
  "luminance": 0.39548
}

Semantic roles & 50–950 ramp

primary

#57B0F3

secondary

#EECFB8

accent

#6302E3

background

#F9FCFF

surface

#F2F8FE

border

#CCD1D6

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #57B0F3

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

Preview Lab → · Contrast checker → · Palette generator →