#4579DB#4579DB

#4579DB is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.0% C 0.160 H 261.7°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#4579DB
RGB	rgb(69, 121, 219)
HSL	hsl(219, 68%, 56%)
HSV	hsv(219, 68%, 86%)
CMYK	cmyk(68.5%, 44.7%, 0%, 14.1%)
CIE-LAB	lab(51.90, 14.68, -55.31)
CIE-LCH	lch(51.90, 57.23, 284.86°)
OKLab	oklab(59.01% -0.023 -0.1583)
OKLCH	oklch(59.01% 0.16 261.7)
XYZ	xyz(22.0732, 20.0522, 69.7113)
Luminance	0.2005 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4579DB #DBA745

analogous

#45C4DB #4579DB #5C45DB

triadic

#4579DB #DB4579 #79DB45

tetradic

#4579DB #DB45C4 #DBA745 #45DB5C

square

#4579DB #DB45C4 #DBA745 #45DB5C

split-complementary

#4579DB #DB5C45 #C4DB45

monochromatic

#1B428B #255ABE #4579DB #789EE5 #ACC3EF

Accessibility & contrast

On white

4.19

#4579DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#4579DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4579DB

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4579DB	#FFFFFF	#000000	##000000
##4579DB	1.00	4.19	5.01	5.01
#FFFFFF	4.19	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)

#4883DF

Deuteranopia (green-blind)

#2C75D9

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4579db;
/* rgb */ color: rgb(69, 121, 219);
/* oklch */ color: oklch(59.0% 0.160 261.7);

Tailwind

colors: {
  custom: {
    50: '#899fe7',
    500: '#4579db',
    950: '#000000',
  },
}

SCSS

$custom: #4579db;
$custom-light: #899fe7;
$custom-dark: #000000;

JSON

{
  "hex": "#4579db",
  "rgb": {
    "r": 69,
    "g": 121,
    "b": 219
  },
  "hsl": {
    "h": 219.2,
    "s": 67.568,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59009,
    "c": 0.15992,
    "h": 261.7
  },
  "luminance": 0.20054
}

Semantic roles & 50–950 ramp

primary

#4579DB

secondary

#DDC79F

accent

#AE3DEA

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4579DB

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

Preview Lab → · Contrast checker → · Palette generator →