#578BEF#578BEF

#578BEF is a light, vivid blue. Relative luminance 0.267; OKLCH L 64.8% C 0.160 H 262.2°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#578BEF
RGB	rgb(87, 139, 239)
HSL	hsl(219, 83%, 64%)
HSV	hsv(219, 64%, 94%)
CMYK	cmyk(63.6%, 41.8%, 0%, 6.3%)
CIE-LAB	lab(58.72, 13.54, -55.54)
CIE-LCH	lch(58.72, 57.17, 283.70°)
OKLab	oklab(64.85% -0.0218 -0.1584)
OKLCH	oklch(64.85% 0.16 262.2)
XYZ	xyz(28.7376, 26.7208, 85.2878)
Luminance	0.2672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578BEF #EFBB57

analogous

#57D7EF #578BEF #6F57EF

triadic

#578BEF #EF578B #8BEF57

tetradic

#578BEF #EF57D7 #EFBB57 #57EF6F

square

#578BEF #EF57D7 #EFBB57 #57EF6F

split-complementary

#578BEF #EF6F57 #D7EF57

monochromatic

#124BBA #1F64EA #578BEF #8FB2F4 #C7D8FA

Accessibility & contrast

On white

3.31

#578BEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#578BEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578BEF

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578BEF	#FFFFFF	#000000	##000000
##578BEF	1.00	3.31	6.34	6.34
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.34	21.00	1.00	1.00
##000000	6.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D95F3

Deuteranopia (green-blind)

#4687ED

Tritanopia (blue-blind)

#00A2B1

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #578bef;
/* rgb */ color: rgb(87, 139, 239);
/* oklch */ color: oklch(64.8% 0.160 262.2);

Tailwind

colors: {
  custom: {
    50: '#94acf5',
    500: '#578bef',
    950: '#000000',
  },
}

SCSS

$custom: #578bef;
$custom-light: #94acf5;
$custom-dark: #000000;

JSON

{
  "hex": "#578bef",
  "rgb": {
    "r": 87,
    "g": 139,
    "b": 239
  },
  "hsl": {
    "h": 219.474,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.64846,
    "c": 0.15987,
    "h": 262.2
  },
  "luminance": 0.26723
}

Semantic roles & 50–950 ramp

primary

#578BEF

secondary

#ECD9B6

accent

#9506DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578BEF

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

Preview Lab → · Contrast checker → · Palette generator →