#578BE9#578BE9

#578BE9 is a light, vivid blue. Relative luminance 0.264; OKLCH L 64.5% C 0.152 H 261.3°. Best body text is #000000 at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#578BE9
RGB	rgb(87, 139, 233)
HSL	hsl(219, 77%, 63%)
HSV	hsv(219, 63%, 91%)
CMYK	cmyk(62.7%, 40.3%, 0%, 8.6%)
CIE-LAB	lab(58.39, 11.52, -52.74)
CIE-LCH	lch(58.39, 53.98, 282.32°)
OKLab	oklab(64.49% -0.0229 -0.1501)
OKLCH	oklch(64.49% 0.152 261.3)
XYZ	xyz(27.8659, 26.3721, 80.6968)
Luminance	0.2637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578BE9 #E9B557

analogous

#57D4E9 #578BE9 #6C57E9

triadic

#578BE9 #E9578B #8BE957

tetradic

#578BE9 #E957D4 #E9B557 #57E96C

square

#578BE9 #E957D4 #E9B557 #57E96C

split-complementary

#578BE9 #E96C57 #D4E957

monochromatic

#174DAF #2166E2 #578BE9 #8DB0F0 #C3D6F7

Accessibility & contrast

On white

3.35

#578BE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.28

#578BE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578BE9

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578BE9	#FFFFFF	#000000	##000000
##578BE9	1.00	3.35	6.28	6.28
#FFFFFF	3.35	1.00	21.00	21.00
#000000	6.28	21.00	1.00	1.00
##000000	6.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6194ED

Deuteranopia (green-blind)

#4C86E7

Tritanopia (blue-blind)

#00A0AF

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #578be9;
/* rgb */ color: rgb(87, 139, 233);
/* oklch */ color: oklch(64.5% 0.152 261.3);

Tailwind

colors: {
  custom: {
    50: '#93acf0',
    500: '#578be9',
    950: '#000000',
  },
}

SCSS

$custom: #578be9;
$custom-light: #93acf0;
$custom-dark: #000000;

JSON

{
  "hex": "#578be9",
  "rgb": {
    "r": 87,
    "g": 139,
    "b": 233
  },
  "hsl": {
    "h": 218.63,
    "s": 76.842,
    "l": 62.745
  },
  "oklch": {
    "l": 0.64488,
    "c": 0.15188,
    "h": 261.3
  },
  "luminance": 0.26375
}

Semantic roles & 50–950 ramp

primary

#578BE9

secondary

#E8D5B3

accent

#900CD9

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578BE9

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

Preview Lab → · Contrast checker → · Palette generator →