#578FF1#578FF1

#578FF1 is a light, vivid blue. Relative luminance 0.280; OKLCH L 65.8% C 0.158 H 260.8°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#578FF1
RGB	rgb(87, 143, 241)
HSL	hsl(218, 85%, 64%)
HSV	hsv(218, 64%, 95%)
CMYK	cmyk(63.9%, 40.7%, 0%, 5.5%)
CIE-LAB	lab(59.91, 11.82, -54.75)
CIE-LCH	lch(59.91, 56.01, 282.19°)
OKLab	oklab(65.8% -0.0253 -0.156)
OKLCH	oklch(65.8% 0.158 260.8)
XYZ	xyz(29.6245, 28.0192, 87.0491)
Luminance	0.2802 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578FF1 #F1B957

analogous

#57DCF1 #578FF1 #6C57F1

triadic

#578FF1 #F1578F #8FF157

tetradic

#578FF1 #F157DC #F1B957 #57F16C

square

#578FF1 #F157DC #F1B957 #57F16C

split-complementary

#578FF1 #F16C57 #DCF157

monochromatic

#104FBE #1F69EC #578FF1 #8FB5F6 #C8DAFA

Accessibility & contrast

On white

3.18

#578FF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#578FF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578FF1

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578FF1	#FFFFFF	#000000	##000000
##578FF1	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6298F5

Deuteranopia (green-blind)

#4B8AEF

Tritanopia (blue-blind)

#00A5B4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #578ff1;
/* rgb */ color: rgb(87, 143, 241);
/* oklch */ color: oklch(65.8% 0.158 260.8);

Tailwind

colors: {
  custom: {
    50: '#94aff6',
    500: '#578ff1',
    950: '#000000',
  },
}

SCSS

$custom: #578ff1;
$custom-light: #94aff6;
$custom-dark: #000000;

JSON

{
  "hex": "#578ff1",
  "rgb": {
    "r": 87,
    "g": 143,
    "b": 241
  },
  "hsl": {
    "h": 218.182,
    "s": 84.615,
    "l": 64.314
  },
  "oklch": {
    "l": 0.65802,
    "c": 0.15803,
    "h": 260.8
  },
  "luminance": 0.28022
}

Semantic roles & 50–950 ramp

primary

#578FF1

secondary

#EDD9B7

accent

#9104E1

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578FF1

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

Preview Lab → · Contrast checker → · Palette generator →