#578CF3#578CF3

#578CF3 is a light, vivid blue. Relative luminance 0.273; OKLCH L 65.3% C 0.164 H 262.3°. Best body text is #000000 at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#578CF3
RGB	rgb(87, 140, 243)
HSL	hsl(220, 87%, 65%)
HSV	hsv(220, 64%, 95%)
CMYK	cmyk(64.2%, 42.4%, 0%, 4.7%)
CIE-LAB	lab(59.21, 14.29, -56.97)
CIE-LCH	lch(59.21, 58.74, 284.08°)
OKLab	oklab(65.3% -0.022 -0.1626)
OKLCH	oklch(65.3% 0.164 262.3)
XYZ	xyz(29.4805, 27.2507, 88.4829)
Luminance	0.2725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578CF3 #F3BE57

analogous

#57DAF3 #578CF3 #7057F3

triadic

#578CF3 #F3578C #8CF357

tetradic

#578CF3 #F357DA #F3BE57 #57F370

square

#578CF3 #F357DA #F3BE57 #57F370

split-complementary

#578CF3 #F37057 #DAF357

monochromatic

#0E4BC2 #1E65EF #578CF3 #90B3F7 #C9DAFB

Accessibility & contrast

On white

3.26

#578CF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.45

#578CF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578CF3

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578CF3	#FFFFFF	#000000	##000000
##578CF3	1.00	3.26	6.45	6.45
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.45	21.00	1.00	1.00
##000000	6.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C96F7

Deuteranopia (green-blind)

#4388F1

Tritanopia (blue-blind)

#00A4B4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #578cf3;
/* rgb */ color: rgb(87, 140, 243);
/* oklch */ color: oklch(65.3% 0.164 262.3);

Tailwind

colors: {
  custom: {
    50: '#95adf7',
    500: '#578cf3',
    950: '#000000',
  },
}

SCSS

$custom: #578cf3;
$custom-light: #95adf7;
$custom-dark: #000000;

JSON

{
  "hex": "#578cf3",
  "rgb": {
    "r": 87,
    "g": 140,
    "b": 243
  },
  "hsl": {
    "h": 219.615,
    "s": 86.667,
    "l": 64.706
  },
  "oklch": {
    "l": 0.65297,
    "c": 0.16404,
    "h": 262.3
  },
  "luminance": 0.27253
}

Semantic roles & 50–950 ramp

primary

#578CF3

secondary

#EEDBB8

accent

#9702E3

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578CF3

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

Preview Lab → · Contrast checker → · Palette generator →