#578CFA#578CFA

#578CFA is a light, vivid blue. Relative luminance 0.277; OKLCH L 65.7% C 0.173 H 263.1°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#578CFA
RGB	rgb(87, 140, 250)
HSL	hsl(220, 94%, 66%)
HSV	hsv(220, 65%, 98%)
CMYK	cmyk(65.2%, 44%, 0%, 2%)
CIE-LAB	lab(59.60, 16.67, -60.20)
CIE-LCH	lch(59.60, 62.46, 285.48°)
OKLab	oklab(65.73% -0.0208 -0.172)
OKLCH	oklch(65.73% 0.173 263.1)
XYZ	xyz(30.5578, 27.6816, 94.1566)
Luminance	0.2768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578CFA #FAC557

analogous

#57DDFA #578CFA #7357FA

triadic

#578CFA #FA578C #8CFA57

tetradic

#578CFA #FA57DD #FAC557 #57FA73

square

#578CFA #FA57DD #FAC557 #57FA73

split-complementary

#578CFA #FA7357 #DDFA57

monochromatic

#0648D0 #1C63F8 #578CFA #92B5FC #CEDDFE

Accessibility & contrast

On white

3.21

#578CFA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#578CFA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578CFA

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578CFA	#FFFFFF	#000000	##000000
##578CFA	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5798FE

Deuteranopia (green-blind)

#3A89F8

Tritanopia (blue-blind)

#00A5B7

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #578cfa;
/* rgb */ color: rgb(87, 140, 250);
/* oklch */ color: oklch(65.7% 0.173 263.1);

Tailwind

colors: {
  custom: {
    50: '#96adfc',
    500: '#578cfa',
    950: '#000000',
  },
}

SCSS

$custom: #578cfa;
$custom-light: #96adfc;
$custom-dark: #000000;

JSON

{
  "hex": "#578cfa",
  "rgb": {
    "r": 87,
    "g": 140,
    "b": 250
  },
  "hsl": {
    "h": 220.491,
    "s": 94.22,
    "l": 66.078
  },
  "oklch": {
    "l": 0.65728,
    "c": 0.17329,
    "h": 263.1
  },
  "luminance": 0.27685
}

Semantic roles & 50–950 ramp

primary

#578CFA

secondary

#F1E0BC

accent

#9B00E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F1018

muted

#7E7F86

Preview Lab

Preview with #578CFA

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

Preview Lab → · Contrast checker → · Palette generator →