#4579CC#4579CC

#4579CC is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.1% C 0.140 H 259.4°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#4579CC
RGB	rgb(69, 121, 204)
HSL	hsl(217, 57%, 54%)
HSV	hsv(217, 66%, 80%)
CMYK	cmyk(66.2%, 40.7%, 0%, 20%)
CIE-LAB	lab(51.03, 9.38, -48.19)
CIE-LCH	lch(51.03, 49.09, 281.02°)
OKLab	oklab(58.06% -0.0258 -0.1373)
OKLCH	oklch(58.06% 0.14 259.4)
XYZ	xyz(20.1868, 19.2976, 59.7760)
Luminance	0.1930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4579CC #CC9845

analogous

#45BCCC #4579CC #5445CC

triadic

#4579CC #CC4579 #79CC45

tetradic

#4579CC #CC45BC #CC9845 #45CC54

square

#4579CC #CC45BC #CC9845 #45CC54

split-complementary

#4579CC #CC5445 #BCCC45

monochromatic

#204176 #2E5CA6 #4579CC #759CD9 #A5BEE6

Accessibility & contrast

On white

4.32

#4579CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#4579CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4579CC

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4579CC	#FFFFFF	#000000	##000000
##4579CC	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5380CF

Deuteranopia (green-blind)

#3E74CA

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4579cc;
/* rgb */ color: rgb(69, 121, 204);
/* oklch */ color: oklch(58.1% 0.140 259.4);

Tailwind

colors: {
  custom: {
    50: '#869fdc',
    500: '#4579cc',
    950: '#000000',
  },
}

SCSS

$custom: #4579cc;
$custom-light: #869fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#4579cc",
  "rgb": {
    "r": 69,
    "g": 121,
    "b": 204
  },
  "hsl": {
    "h": 216.889,
    "s": 56.962,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58064,
    "c": 0.13974,
    "h": 259.4
  },
  "luminance": 0.193
}

Semantic roles & 50–950 ramp

primary

#4579CC

secondary

#D3BD99

accent

#A548E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4579CC

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

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