#4579DF#4579DF

#4579DF is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.3% C 0.165 H 262.2°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#4579DF
RGB	rgb(69, 121, 223)
HSL	hsl(220, 71%, 57%)
HSV	hsv(220, 69%, 87%)
CMYK	cmyk(69.1%, 45.7%, 0%, 12.5%)
CIE-LAB	lab(52.14, 16.10, -57.18)
CIE-LCH	lch(52.14, 59.41, 285.72°)
OKLab	oklab(59.27% -0.0223 -0.1638)
OKLCH	oklch(59.27% 0.165 262.2)
XYZ	xyz(22.6062, 20.2653, 72.5180)
Luminance	0.2027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4579DF #DFAB45

analogous

#45C6DF #4579DF #5E45DF

triadic

#4579DF #DF4579 #79DF45

tetradic

#4579DF #DF45C6 #DFAB45 #45DF5E

square

#4579DF #DF45C6 #DFAB45 #45DF5E

split-complementary

#4579DF #DF5E45 #C6DF45

monochromatic

#194191 #2259C5 #4579DF #799FE8 #ADC4F1

Accessibility & contrast

On white

4.16

#4579DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#4579DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4579DF

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4579DF	#FFFFFF	#000000	##000000
##4579DF	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4584E3

Deuteranopia (green-blind)

#2576DD

Tritanopia (blue-blind)

#0091A1

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4579df;
/* rgb */ color: rgb(69, 121, 223);
/* oklch */ color: oklch(59.3% 0.165 262.2);

Tailwind

colors: {
  custom: {
    50: '#8a9fe9',
    500: '#4579df',
    950: '#000000',
  },
}

SCSS

$custom: #4579df;
$custom-light: #8a9fe9;
$custom-dark: #000000;

JSON

{
  "hex": "#4579df",
  "rgb": {
    "r": 69,
    "g": 121,
    "b": 223
  },
  "hsl": {
    "h": 219.74,
    "s": 70.642,
    "l": 57.255
  },
  "oklch": {
    "l": 0.5927,
    "c": 0.16527,
    "h": 262.2
  },
  "luminance": 0.20268
}

Semantic roles & 50–950 ramp

primary

#4579DF

secondary

#DFCAA1

accent

#B13AED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4579DF

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

Preview Lab → · Contrast checker → · Palette generator →