#579BFB#579BFB

#579BFB is a light, vivid blue. Relative luminance 0.324; OKLCH L 68.9% C 0.158 H 257.3°. Best body text is #000000 at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#579BFB
RGB	rgb(87, 155, 251)
HSL	hsl(215, 95%, 66%)
HSV	hsv(215, 65%, 98%)
CMYK	cmyk(65.3%, 38.2%, 0%, 1.6%)
CIE-LAB	lab(63.70, 8.11, -54.21)
CIE-LCH	lch(63.70, 54.82, 278.50°)
OKLab	oklab(68.91% -0.0347 -0.1543)
OKLCH	oklch(68.91% 0.158 257.3)
XYZ	xyz(33.0581, 32.4307, 95.7656)
Luminance	0.3243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BFB #FBB757

analogous

#57EDFB #579BFB #6557FB

triadic

#579BFB #FB579B #9BFB57

tetradic

#579BFB #FB57ED #FBB757 #57FB65

square

#579BFB #FB57ED #FBB757 #57FB65

split-complementary

#579BFB #FB6557 #EDFB57

monochromatic

#055AD3 #1B77FA #579BFB #93BFFC #CFE2FE

Accessibility & contrast

On white

2.80

#579BFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.49

#579BFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579BFB

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BFB	#FFFFFF	#000000	##000000
##579BFB	1.00	2.80	7.49	7.49
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.49	21.00	1.00	1.00
##000000	7.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#70A3FF

Deuteranopia (green-blind)

#5893F9

Tritanopia (blue-blind)

#00B1BF

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #579bfb;
/* rgb */ color: rgb(87, 155, 251);
/* oklch */ color: oklch(68.9% 0.158 257.3);

Tailwind

colors: {
  custom: {
    50: '#96b8fd',
    500: '#579bfb',
    950: '#000000',
  },
}

SCSS

$custom: #579bfb;
$custom-light: #96b8fd;
$custom-dark: #000000;

JSON

{
  "hex": "#579bfb",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 251
  },
  "hsl": {
    "h": 215.122,
    "s": 95.349,
    "l": 66.275
  },
  "oklch": {
    "l": 0.68914,
    "c": 0.15813,
    "h": 257.3
  },
  "luminance": 0.32434
}

Semantic roles & 50–950 ramp

primary

#579BFB

secondary

#F2DBBC

accent

#8600E6

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1118

muted

#7E8086

Preview Lab

Preview with #579BFB

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

Preview Lab → · Contrast checker → · Palette generator →