#4578DF#4578DF

#4578DF is a mid, vivid blue. Relative luminance 0.200; OKLCH L 59.1% C 0.166 H 262.6°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#4578DF
RGB	rgb(69, 120, 223)
HSL	hsl(220, 71%, 57%)
HSV	hsv(220, 69%, 87%)
CMYK	cmyk(69.1%, 46.2%, 0%, 12.5%)
CIE-LAB	lab(51.86, 16.72, -57.62)
CIE-LCH	lch(51.86, 60.00, 286.18°)
OKLab	oklab(59.06% -0.0214 -0.1651)
OKLCH	oklch(59.06% 0.166 262.6)
XYZ	xyz(22.4853, 20.0236, 72.4777)
Luminance	0.2003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4578DF #DFAC45

analogous

#45C5DF #4578DF #5F45DF

triadic

#4578DF #DF4578 #78DF45

tetradic

#4578DF #DF45C5 #DFAC45 #45DF5F

square

#4578DF #DF45C5 #DFAC45 #45DF5F

split-complementary

#4578DF #DF5F45 #C5DF45

monochromatic

#194191 #2258C5 #4578DF #799EE8 #ADC4F1

Accessibility & contrast

On white

4.20

#4578DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#4578DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4578DF

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4578DF	#FFFFFF	#000000	##000000
##4578DF	1.00	4.20	5.01	5.01
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4383E3

Deuteranopia (green-blind)

#2175DD

Tritanopia (blue-blind)

#0090A1

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4578df;
/* rgb */ color: rgb(69, 120, 223);
/* oklch */ color: oklch(59.1% 0.166 262.6);

Tailwind

colors: {
  custom: {
    50: '#8a9eea',
    500: '#4578df',
    950: '#000000',
  },
}

SCSS

$custom: #4578df;
$custom-light: #8a9eea;
$custom-dark: #000000;

JSON

{
  "hex": "#4578df",
  "rgb": {
    "r": 69,
    "g": 120,
    "b": 223
  },
  "hsl": {
    "h": 220.13,
    "s": 70.642,
    "l": 57.255
  },
  "oklch": {
    "l": 0.59062,
    "c": 0.16644,
    "h": 262.6
  },
  "luminance": 0.20026
}

Semantic roles & 50–950 ramp

primary

#4578DF

secondary

#DFCAA1

accent

#B23AED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4578DF

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

Preview Lab → · Contrast checker → · Palette generator →