#4F73CF#4F73CF

#4F73CF is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.5% C 0.147 H 265.9°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4F73CF
RGB	rgb(79, 115, 207)
HSL	hsl(223, 57%, 56%)
HSV	hsv(223, 62%, 81%)
CMYK	cmyk(61.8%, 44.4%, 0%, 18.8%)
CIE-LAB	lab(50.01, 15.88, -51.50)
CIE-LCH	lch(50.01, 53.90, 287.14°)
OKLab	oklab(57.46% -0.0106 -0.147)
OKLCH	oklch(57.46% 0.147 265.9)
XYZ	xyz(20.6138, 18.4269, 61.4898)
Luminance	0.1843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F73CF #CFAB4F

analogous

#4FB3CF #4F73CF #6B4FCF

triadic

#4F73CF #CF4F73 #73CF4F

tetradic

#4F73CF #CF4FB3 #CFAB4F #4FCF6B

square

#4F73CF #CF4FB3 #CFAB4F #4FCF6B

split-complementary

#4F73CF #CF6B4F #B3CF4F

monochromatic

#233D81 #3054B1 #4F73CF #7F99DC #AFBFE9

Accessibility & contrast

On white

4.48

#4F73CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#4F73CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F73CF

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F73CF	#FFFFFF	#000000	##000000
##4F73CF	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#487DD2

Deuteranopia (green-blind)

#3472CD

Tritanopia (blue-blind)

#008897

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4f73cf;
/* rgb */ color: rgb(79, 115, 207);
/* oklch */ color: oklch(57.5% 0.147 265.9);

Tailwind

colors: {
  custom: {
    50: '#8c9ade',
    500: '#4f73cf',
    950: '#000000',
  },
}

SCSS

$custom: #4f73cf;
$custom-light: #8c9ade;
$custom-dark: #000000;

JSON

{
  "hex": "#4f73cf",
  "rgb": {
    "r": 79,
    "g": 115,
    "b": 207
  },
  "hsl": {
    "h": 223.125,
    "s": 57.143,
    "l": 56.078
  },
  "oklch": {
    "l": 0.57457,
    "c": 0.14735,
    "h": 265.9
  },
  "luminance": 0.18429
}

Semantic roles & 50–950 ramp

primary

#4F73CF

secondary

#D7C8A2

accent

#B547E0

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4F73CF

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

Preview Lab → · Contrast checker → · Palette generator →