#4F73BC#4F73BC

#4F73BC is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.3% C 0.121 H 263.2°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4F73BC
RGB	rgb(79, 115, 188)
HSL	hsl(220, 45%, 52%)
HSV	hsv(220, 58%, 74%)
CMYK	cmyk(58%, 38.8%, 0%, 26.3%)
CIE-LAB	lab(48.95, 9.44, -42.30)
CIE-LCH	lch(48.95, 43.34, 282.58°)
OKLab	oklab(56.3% -0.0143 -0.12)
OKLCH	oklch(56.3% 0.121 263.2)
XYZ	xyz(18.4292, 17.5531, 49.9841)
Luminance	0.1756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F73BC #BC984F

analogous

#4FAABC #4F73BC #614FBC

triadic

#4F73BC #BC4F73 #73BC4F

tetradic

#4F73BC #BC4FAA #BC984F #4FBC61

square

#4F73BC #BC4FAA #BC984F #4FBC61

split-complementary

#4F73BC #BC614F #AABC4F

monochromatic

#283D69 #395795 #4F73BC #7B96CD #A8BADE

Accessibility & contrast

On white

4.66

#4F73BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#4F73BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4F73BC

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F73BC	#FFFFFF	#000000	##FFFFFF
##4F73BC	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#547ABF

Deuteranopia (green-blind)

#4670BA

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4f73bc;
/* rgb */ color: rgb(79, 115, 188);
/* oklch */ color: oklch(56.3% 0.121 263.2);

Tailwind

colors: {
  custom: {
    50: '#899ad0',
    500: '#4f73bc',
    950: '#000000',
  },
}

SCSS

$custom: #4f73bc;
$custom-light: #899ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f73bc",
  "rgb": {
    "r": 79,
    "g": 115,
    "b": 188
  },
  "hsl": {
    "h": 220.183,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.56296,
    "c": 0.12084,
    "h": 263.2
  },
  "luminance": 0.17555
}

Semantic roles & 50–950 ramp

primary

#4F73BC

secondary

#CBBB9C

accent

#AA53D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4F73BC

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

Preview Lab → · Contrast checker → · Palette generator →