#578CDB#578CDB

#578CDB is a light, vivid blue. Relative luminance 0.259; OKLCH L 63.9% C 0.132 H 258.2°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#578CDB
RGB	rgb(87, 140, 219)
HSL	hsl(216, 65%, 60%)
HSV	hsv(216, 60%, 86%)
CMYK	cmyk(60.3%, 36.1%, 0%, 14.1%)
CIE-LAB	lab(57.94, 6.26, -45.65)
CIE-LCH	lch(57.94, 46.08, 277.80°)
OKLab	oklab(63.9% -0.0271 -0.1294)
OKLCH	oklch(63.9% 0.132 258.2)
XYZ	xyz(26.0902, 25.8945, 70.6273)
Luminance	0.2590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578CDB #DBA657

analogous

#57CEDB #578CDB #6457DB

triadic

#578CDB #DB578C #8CDB57

tetradic

#578CDB #DB57CE #DBA657 #57DB64

square

#578CDB #DB57CE #DBA657 #57DB64

split-complementary

#578CDB #DB6457 #CEDB57

monochromatic

#205097 #2B6BCA #578CDB #89AFE6 #BCD1F1

Accessibility & contrast

On white

3.40

#578CDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#578CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578CDB

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578CDB	#FFFFFF	#000000	##000000
##578CDB	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A92DE

Deuteranopia (green-blind)

#5986D9

Tritanopia (blue-blind)

#009EA9

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #578cdb;
/* rgb */ color: rgb(87, 140, 219);
/* oklch */ color: oklch(63.9% 0.132 258.2);

Tailwind

colors: {
  custom: {
    50: '#91ade6',
    500: '#578cdb',
    950: '#000000',
  },
}

SCSS

$custom: #578cdb;
$custom-light: #91ade6;
$custom-dark: #000000;

JSON

{
  "hex": "#578cdb",
  "rgb": {
    "r": 87,
    "g": 140,
    "b": 219
  },
  "hsl": {
    "h": 215.909,
    "s": 64.706,
    "l": 60
  },
  "oklch": {
    "l": 0.63901,
    "c": 0.13219,
    "h": 258.2
  },
  "luminance": 0.25897
}

Semantic roles & 50–950 ramp

primary

#578CDB

secondary

#E0CCAD

accent

#A440E8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #578CDB

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

Preview Lab → · Contrast checker → · Palette generator →