#578BDB#578BDB

#578BDB is a light, vivid blue. Relative luminance 0.256; OKLCH L 63.7% C 0.133 H 258.7°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#578BDB
RGB	rgb(87, 139, 219)
HSL	hsl(216, 65%, 60%)
HSV	hsv(216, 60%, 86%)
CMYK	cmyk(60.3%, 36.5%, 0%, 14.1%)
CIE-LAB	lab(57.66, 6.85, -46.09)
CIE-LCH	lch(57.66, 46.60, 278.45°)
OKLab	oklab(63.69% -0.026 -0.1307)
OKLCH	oklch(63.69% 0.133 258.7)
XYZ	xyz(25.9448, 25.6036, 70.5788)
Luminance	0.2561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578BDB #DBA757

analogous

#57CDDB #578BDB #6557DB

triadic

#578BDB #DB578B #8BDB57

tetradic

#578BDB #DB57CD #DBA757 #57DB65

square

#578BDB #DB57CD #DBA757 #57DB65

split-complementary

#578BDB #DB6557 #CDDB57

monochromatic

#204F97 #2B6ACA #578BDB #89AEE6 #BCD1F1

Accessibility & contrast

On white

3.43

#578BDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#578BDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578BDB

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578BDB	#FFFFFF	#000000	##000000
##578BDB	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6991DE

Deuteranopia (green-blind)

#5785D9

Tritanopia (blue-blind)

#009DA9

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #578bdb;
/* rgb */ color: rgb(87, 139, 219);
/* oklch */ color: oklch(63.7% 0.133 258.7);

Tailwind

colors: {
  custom: {
    50: '#91ace6',
    500: '#578bdb',
    950: '#000000',
  },
}

SCSS

$custom: #578bdb;
$custom-light: #91ace6;
$custom-dark: #000000;

JSON

{
  "hex": "#578bdb",
  "rgb": {
    "r": 87,
    "g": 139,
    "b": 219
  },
  "hsl": {
    "h": 216.364,
    "s": 64.706,
    "l": 60
  },
  "oklch": {
    "l": 0.63685,
    "c": 0.13325,
    "h": 258.7
  },
  "luminance": 0.25606
}

Semantic roles & 50–950 ramp

primary

#578BDB

secondary

#E0CCAD

accent

#A640E8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #578BDB

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

Preview Lab → · Contrast checker → · Palette generator →