#4F72BC#4F72BC

#4F72BC is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.1% C 0.122 H 263.8°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#4F72BC
RGB	rgb(79, 114, 188)
HSL	hsl(221, 45%, 52%)
HSV	hsv(221, 58%, 74%)
CMYK	cmyk(58%, 39.4%, 0%, 26.3%)
CIE-LAB	lab(48.67, 10.06, -42.75)
CIE-LCH	lch(48.67, 43.91, 283.24°)
OKLab	oklab(56.08% -0.0132 -0.1213)
OKLCH	oklch(56.08% 0.122 263.8)
XYZ	xyz(18.3158, 17.3262, 49.9463)
Luminance	0.1733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F72BC #BC994F

analogous

#4FA9BC #4F72BC #634FBC

triadic

#4F72BC #BC4F72 #72BC4F

tetradic

#4F72BC #BC4FA9 #BC994F #4FBC63

square

#4F72BC #BC4FA9 #BC994F #4FBC63

split-complementary

#4F72BC #BC634F #A9BC4F

monochromatic

#283D69 #395695 #4F72BC #7B96CD #A8B9DE

Accessibility & contrast

On white

4.70

#4F72BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#4F72BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F72BC

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F72BC	#FFFFFF	#000000	##FFFFFF
##4F72BC	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5379BF

Deuteranopia (green-blind)

#456FBA

Tritanopia (blue-blind)

#00828E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4f72bc;
/* rgb */ color: rgb(79, 114, 188);
/* oklch */ color: oklch(56.1% 0.122 263.8);

Tailwind

colors: {
  custom: {
    50: '#899ad0',
    500: '#4f72bc',
    950: '#000000',
  },
}

SCSS

$custom: #4f72bc;
$custom-light: #899ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f72bc",
  "rgb": {
    "r": 79,
    "g": 114,
    "b": 188
  },
  "hsl": {
    "h": 220.734,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.56078,
    "c": 0.12202,
    "h": 263.8
  },
  "luminance": 0.17328
}

Semantic roles & 50–950 ramp

primary

#4F72BC

secondary

#CBBC9C

accent

#AB53D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4F72BC

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

Preview Lab → · Contrast checker → · Palette generator →