#4579DD#4579DD

#4579DD is a mid, vivid blue. Relative luminance 0.202; OKLCH L 59.1% C 0.163 H 262.0°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#4579DD
RGB	rgb(69, 121, 221)
HSL	hsl(219, 69%, 57%)
HSV	hsv(219, 69%, 87%)
CMYK	cmyk(68.8%, 45.2%, 0%, 13.3%)
CIE-LAB	lab(52.02, 15.39, -56.25)
CIE-LCH	lch(52.02, 58.32, 285.30°)
OKLab	oklab(59.14% -0.0226 -0.161)
OKLCH	oklch(59.14% 0.163 262)
XYZ	xyz(22.3381, 20.1581, 71.1063)
Luminance	0.2016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4579DD #DDA945

analogous

#45C5DD #4579DD #5D45DD

triadic

#4579DD #DD4579 #79DD45

tetradic

#4579DD #DD45C5 #DDA945 #45DD5D

square

#4579DD #DD45C5 #DDA945 #45DD5D

split-complementary

#4579DD #DD5D45 #C5DD45

monochromatic

#1A428E #2359C1 #4579DD #799EE6 #ACC4F0

Accessibility & contrast

On white

4.17

#4579DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#4579DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4579DD

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4579DD	#FFFFFF	#000000	##000000
##4579DD	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4784E1

Deuteranopia (green-blind)

#2876DB

Tritanopia (blue-blind)

#0090A0

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4579dd;
/* rgb */ color: rgb(69, 121, 221);
/* oklch */ color: oklch(59.1% 0.163 262.0);

Tailwind

colors: {
  custom: {
    50: '#899fe8',
    500: '#4579dd',
    950: '#000000',
  },
}

SCSS

$custom: #4579dd;
$custom-light: #899fe8;
$custom-dark: #000000;

JSON

{
  "hex": "#4579dd",
  "rgb": {
    "r": 69,
    "g": 121,
    "b": 221
  },
  "hsl": {
    "h": 219.474,
    "s": 69.091,
    "l": 56.863
  },
  "oklch": {
    "l": 0.59139,
    "c": 0.1626,
    "h": 262
  },
  "luminance": 0.2016
}

Semantic roles & 50–950 ramp

primary

#4579DD

secondary

#DEC9A0

accent

#B03CEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4579DD

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

Preview Lab → · Contrast checker → · Palette generator →