#578AEF#578AEF

#578AEF is a light, vivid blue. Relative luminance 0.264; OKLCH L 64.6% C 0.161 H 262.6°. Best body text is #000000 at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#578AEF
RGB	rgb(87, 138, 239)
HSL	hsl(220, 83%, 64%)
HSV	hsv(220, 64%, 94%)
CMYK	cmyk(63.6%, 42.3%, 0%, 6.3%)
CIE-LAB	lab(58.45, 14.14, -55.97)
CIE-LCH	lch(58.45, 57.73, 284.18°)
OKLab	oklab(64.64% -0.0208 -0.1596)
OKLCH	oklch(64.64% 0.161 262.6)
XYZ	xyz(28.5935, 26.4325, 85.2397)
Luminance	0.2643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578AEF #EFBC57

analogous

#57D6EF #578AEF #7057EF

triadic

#578AEF #EF578A #8AEF57

tetradic

#578AEF #EF57D6 #EFBC57 #57EF70

square

#578AEF #EF57D6 #EFBC57 #57EF70

split-complementary

#578AEF #EF7057 #D6EF57

monochromatic

#124ABA #1F63EA #578AEF #8FB1F4 #C7D8FA

Accessibility & contrast

On white

3.34

#578AEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.29

#578AEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578AEF

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578AEF	#FFFFFF	#000000	##000000
##578AEF	1.00	3.34	6.29	6.29
#FFFFFF	3.34	1.00	21.00	21.00
#000000	6.29	21.00	1.00	1.00
##000000	6.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B94F3

Deuteranopia (green-blind)

#4486ED

Tritanopia (blue-blind)

#00A1B1

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #578aef;
/* rgb */ color: rgb(87, 138, 239);
/* oklch */ color: oklch(64.6% 0.161 262.6);

Tailwind

colors: {
  custom: {
    50: '#94abf5',
    500: '#578aef',
    950: '#000000',
  },
}

SCSS

$custom: #578aef;
$custom-light: #94abf5;
$custom-dark: #000000;

JSON

{
  "hex": "#578aef",
  "rgb": {
    "r": 87,
    "g": 138,
    "b": 239
  },
  "hsl": {
    "h": 219.868,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.64638,
    "c": 0.161,
    "h": 262.6
  },
  "luminance": 0.26435
}

Semantic roles & 50–950 ramp

primary

#578AEF

secondary

#ECDAB6

accent

#9606DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578AEF

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

Preview Lab → · Contrast checker → · Palette generator →