#578AFA#578AFA

#578AFA is a light, vivid blue. Relative luminance 0.271; OKLCH L 65.3% C 0.176 H 263.8°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#578AFA
RGB	rgb(87, 138, 250)
HSL	hsl(221, 94%, 66%)
HSV	hsv(221, 65%, 98%)
CMYK	cmyk(65.2%, 44.8%, 0%, 2%)
CIE-LAB	lab(59.07, 17.87, -61.05)
CIE-LCH	lch(59.07, 63.61, 286.32°)
OKLab	oklab(65.32% -0.0189 -0.1746)
OKLCH	oklch(65.32% 0.176 263.8)
XYZ	xyz(30.2682, 27.1024, 94.0601)
Luminance	0.2711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578AFA #FAC757

analogous

#57DBFA #578AFA #7557FA

triadic

#578AFA #FA578A #8AFA57

tetradic

#578AFA #FA57DB #FAC757 #57FA75

square

#578AFA #FA57DB #FAC757 #57FA75

split-complementary

#578AFA #FA7557 #DBFA57

monochromatic

#0645D0 #1C61F8 #578AFA #92B3FC #CEDDFE

Accessibility & contrast

On white

3.27

#578AFA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#578AFA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578AFA

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578AFA	#FFFFFF	#000000	##000000
##578AFA	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5396FE

Deuteranopia (green-blind)

#3587F8

Tritanopia (blue-blind)

#00A4B6

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #578afa;
/* rgb */ color: rgb(87, 138, 250);
/* oklch */ color: oklch(65.3% 0.176 263.8);

Tailwind

colors: {
  custom: {
    50: '#96abfc',
    500: '#578afa',
    950: '#000000',
  },
}

SCSS

$custom: #578afa;
$custom-light: #96abfc;
$custom-dark: #000000;

JSON

{
  "hex": "#578afa",
  "rgb": {
    "r": 87,
    "g": 138,
    "b": 250
  },
  "hsl": {
    "h": 221.227,
    "s": 94.22,
    "l": 66.078
  },
  "oklch": {
    "l": 0.6532,
    "c": 0.17558,
    "h": 263.8
  },
  "luminance": 0.27105
}

Semantic roles & 50–950 ramp

primary

#578AFA

secondary

#F1E0BC

accent

#9E00E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F1018

muted

#7E7F86

Preview Lab

Preview with #578AFA

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

Preview Lab → · Contrast checker → · Palette generator →