#579DFB#579DFB

#579DFB is a light, vivid cyan. Relative luminance 0.331; OKLCH L 69.3% C 0.156 H 256.4°. Best body text is #000000 at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#579DFB
RGB	rgb(87, 157, 251)
HSL	hsl(214, 95%, 66%)
HSV	hsv(214, 65%, 98%)
CMYK	cmyk(65.3%, 37.5%, 0%, 1.6%)
CIE-LAB	lab(64.24, 6.94, -53.35)
CIE-LCH	lch(64.24, 53.80, 277.41°)
OKLab	oklab(69.34% -0.0366 -0.1517)
OKLCH	oklch(69.34% 0.156 256.4)
XYZ	xyz(33.3937, 33.1019, 95.8775)
Luminance	0.3311 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579DFB #FBB557

analogous

#57EFFB #579DFB #6357FB

triadic

#579DFB #FB579D #9DFB57

tetradic

#579DFB #FB57EF #FBB557 #57FB63

square

#579DFB #FB57EF #FBB557 #57FB63

split-complementary

#579DFB #FB6357 #EFFB57

monochromatic

#055DD3 #1B7AFA #579DFB #93C0FC #CFE3FE

Accessibility & contrast

On white

2.76

#579DFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.62

#579DFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579DFB

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579DFB	#FFFFFF	#000000	##000000
##579DFB	1.00	2.76	7.62	7.62
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.62	21.00	1.00	1.00
##000000	7.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#73A4FF

Deuteranopia (green-blind)

#5B95F9

Tritanopia (blue-blind)

#00B3C0

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #579dfb;
/* rgb */ color: rgb(87, 157, 251);
/* oklch */ color: oklch(69.3% 0.156 256.4);

Tailwind

colors: {
  custom: {
    50: '#96b9fd',
    500: '#579dfb',
    950: '#000000',
  },
}

SCSS

$custom: #579dfb;
$custom-light: #96b9fd;
$custom-dark: #000000;

JSON

{
  "hex": "#579dfb",
  "rgb": {
    "r": 87,
    "g": 157,
    "b": 251
  },
  "hsl": {
    "h": 214.39,
    "s": 95.349,
    "l": 66.275
  },
  "oklch": {
    "l": 0.69339,
    "c": 0.15606,
    "h": 256.4
  },
  "luminance": 0.33105
}

Semantic roles & 50–950 ramp

primary

#579DFB

secondary

#F2DBBC

accent

#8400E6

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1118

muted

#7E8086

Preview Lab

Preview with #579DFB

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

Preview Lab → · Contrast checker → · Palette generator →