#578FEB#578FEB

#578FEB is a light, vivid blue. Relative luminance 0.277; OKLCH L 65.5% C 0.150 H 259.8°. Best body text is #000000 at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#578FEB
RGB	rgb(87, 143, 235)
HSL	hsl(217, 79%, 63%)
HSV	hsv(217, 63%, 92%)
CMYK	cmyk(63%, 39.1%, 0%, 7.8%)
CIE-LAB	lab(59.59, 9.81, -51.94)
CIE-LCH	lch(59.59, 52.86, 280.69°)
OKLab	oklab(65.45% -0.0265 -0.1478)
OKLCH	oklch(65.45% 0.15 259.8)
XYZ	xyz(28.7430, 27.6666, 82.4066)
Luminance	0.2767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578FEB #EBB357

analogous

#57D9EB #578FEB #6957EB

triadic

#578FEB #EB578F #8FEB57

tetradic

#578FEB #EB57D9 #EBB357 #57EB69

square

#578FEB #EB57D9 #EBB357 #57EB69

split-complementary

#578FEB #EB6957 #D9EB57

monochromatic

#1551B2 #206BE4 #578FEB #8EB3F2 #C4D8F8

Accessibility & contrast

On white

3.21

#578FEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.53

#578FEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578FEB

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578FEB	#FFFFFF	#000000	##000000
##578FEB	1.00	3.21	6.53	6.53
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.53	21.00	1.00	1.00
##000000	6.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6697EF

Deuteranopia (green-blind)

#5189E9

Tritanopia (blue-blind)

#00A4B2

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #578feb;
/* rgb */ color: rgb(87, 143, 235);
/* oklch */ color: oklch(65.5% 0.150 259.8);

Tailwind

colors: {
  custom: {
    50: '#93aff2',
    500: '#578feb',
    950: '#000000',
  },
}

SCSS

$custom: #578feb;
$custom-light: #93aff2;
$custom-dark: #000000;

JSON

{
  "hex": "#578feb",
  "rgb": {
    "r": 87,
    "g": 143,
    "b": 235
  },
  "hsl": {
    "h": 217.297,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.6545,
    "c": 0.15012,
    "h": 259.8
  },
  "luminance": 0.27669
}

Semantic roles & 50–950 ramp

primary

#578FEB

secondary

#E9D5B4

accent

#8C0ADB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578FEB

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

Preview Lab → · Contrast checker → · Palette generator →