#4579CB#4579CB

#4579CB is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.0% C 0.138 H 259.2°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#4579CB
RGB	rgb(69, 121, 203)
HSL	hsl(217, 56%, 53%)
HSV	hsv(217, 66%, 80%)
CMYK	cmyk(66%, 40.4%, 0%, 20.4%)
CIE-LAB	lab(50.98, 9.03, -47.71)
CIE-LCH	lch(50.98, 48.55, 280.72°)
OKLab	oklab(58% -0.026 -0.1359)
OKLCH	oklch(58% 0.138 259.2)
XYZ	xyz(20.0673, 19.2498, 59.1464)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4579CB #CB9745

analogous

#45BCCB #4579CB #5445CB

triadic

#4579CB #CB4579 #79CB45

tetradic

#4579CB #CB45BC #CB9745 #45CB54

square

#4579CB #CB45BC #CB9745 #45CB54

split-complementary

#4579CB #CB5445 #BCCB45

monochromatic

#214175 #2E5CA5 #4579CB #759BD8 #A5BEE6

Accessibility & contrast

On white

4.33

#4579CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#4579CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4579CB

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4579CB	#FFFFFF	#000000	##000000
##4579CB	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5480CE

Deuteranopia (green-blind)

#3F74C9

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4579cb;
/* rgb */ color: rgb(69, 121, 203);
/* oklch */ color: oklch(58.0% 0.138 259.2);

Tailwind

colors: {
  custom: {
    50: '#869fdb',
    500: '#4579cb',
    950: '#000000',
  },
}

SCSS

$custom: #4579cb;
$custom-light: #869fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4579cb",
  "rgb": {
    "r": 69,
    "g": 121,
    "b": 203
  },
  "hsl": {
    "h": 216.716,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.58003,
    "c": 0.13839,
    "h": 259.2
  },
  "luminance": 0.19252
}

Semantic roles & 50–950 ramp

primary

#4579CB

secondary

#D3BC99

accent

#A548E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4579CB

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

Preview Lab → · Contrast checker → · Palette generator →