#4F72BB#4F72BB

#4F72BB is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.0% C 0.121 H 263.6°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#4F72BB
RGB	rgb(79, 114, 187)
HSL	hsl(221, 44%, 52%)
HSV	hsv(221, 58%, 73%)
CMYK	cmyk(57.8%, 39%, 0%, 26.7%)
CIE-LAB	lab(48.62, 9.72, -42.26)
CIE-LCH	lch(48.62, 43.36, 282.96°)
OKLab	oklab(56.02% -0.0134 -0.1199)
OKLCH	oklch(56.02% 0.121 263.6)
XYZ	xyz(18.2083, 17.2833, 49.3805)
Luminance	0.1729 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F72BB #BB984F

analogous

#4FA8BB #4F72BB #624FBB

triadic

#4F72BB #BB4F72 #72BB4F

tetradic

#4F72BB #BB4FA8 #BB984F #4FBB62

square

#4F72BB #BB4FA8 #BB984F #4FBB62

split-complementary

#4F72BB #BB624F #A8BB4F

monochromatic

#283D68 #395694 #4F72BB #7B95CC #A7B9DD

Accessibility & contrast

On white

4.71

#4F72BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#4F72BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F72BB

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F72BB	#FFFFFF	#000000	##FFFFFF
##4F72BB	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5379BE

Deuteranopia (green-blind)

#456FB9

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4f72bb;
/* rgb */ color: rgb(79, 114, 187);
/* oklch */ color: oklch(56.0% 0.121 263.6);

Tailwind

colors: {
  custom: {
    50: '#899ad0',
    500: '#4f72bb',
    950: '#000000',
  },
}

SCSS

$custom: #4f72bb;
$custom-light: #899ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f72bb",
  "rgb": {
    "r": 79,
    "g": 114,
    "b": 187
  },
  "hsl": {
    "h": 220.556,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.5602,
    "c": 0.12061,
    "h": 263.6
  },
  "luminance": 0.17285
}

Semantic roles & 50–950 ramp

primary

#4F72BB

secondary

#CABB9B

accent

#AA54D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4F72BB

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

Preview Lab → · Contrast checker → · Palette generator →