#578DFF#578DFF

#578DFF is a light, vivid blue. Relative luminance 0.283; OKLCH L 66.2% C 0.179 H 263.3°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#578DFF
RGB	rgb(87, 141, 255)
HSL	hsl(221, 100%, 67%)
HSV	hsv(221, 66%, 100%)
CMYK	cmyk(65.9%, 44.7%, 0%, 0%)
CIE-LAB	lab(60.15, 17.77, -62.06)
CIE-LCH	lch(60.15, 64.55, 285.98°)
OKLab	oklab(66.25% -0.0209 -0.1775)
OKLCH	oklch(66.25% 0.179 263.3)
XYZ	xyz(31.4990, 28.2929, 98.3894)
Luminance	0.2830 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578DFF #FFC957

analogous

#57E1FF #578DFF #7557FF

triadic

#578DFF #FF578D #8DFF57

tetradic

#578DFF #FF57E1 #FFC957 #57FF75

square

#578DFF #FF57E1 #FFC957 #57FF75

split-complementary

#578DFF #FF7557 #E1FF57

monochromatic

#0047DC #1A63FF #578DFF #94B7FF #D1E0FF

Accessibility & contrast

On white

3.15

#578DFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#578DFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578DFF

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578DFF	#FFFFFF	#000000	##000000
##578DFF	1.00	3.15	6.66	6.66
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.66	21.00	1.00	1.00
##000000	6.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5599FF

Deuteranopia (green-blind)

#368AFD

Tritanopia (blue-blind)

#00A7BA

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #578dff;
/* rgb */ color: rgb(87, 141, 255);
/* oklch */ color: oklch(66.2% 0.179 263.3);

Tailwind

colors: {
  custom: {
    50: '#96adff',
    500: '#578dff',
    950: '#000000',
  },
}

SCSS

$custom: #578dff;
$custom-light: #96adff;
$custom-dark: #000000;

JSON

{
  "hex": "#578dff",
  "rgb": {
    "r": 87,
    "g": 141,
    "b": 255
  },
  "hsl": {
    "h": 220.714,
    "s": 100,
    "l": 67.059
  },
  "oklch": {
    "l": 0.66245,
    "c": 0.17872,
    "h": 263.3
  },
  "luminance": 0.28296
}

Semantic roles & 50–950 ramp

primary

#578DFF

secondary

#F4E2BE

accent

#9C00E6

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #578DFF

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

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