#4F72CB#4F72CB

#4F72CB is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.0% C 0.143 H 265.9°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#4F72CB
RGB	rgb(79, 114, 203)
HSL	hsl(223, 54%, 55%)
HSV	hsv(223, 61%, 80%)
CMYK	cmyk(61.1%, 43.8%, 0%, 20.4%)
CIE-LAB	lab(49.50, 15.13, -50.03)
CIE-LCH	lch(49.50, 52.27, 286.83°)
OKLab	oklab(56.99% -0.0103 -0.1426)
OKLCH	oklch(56.99% 0.143 265.9)
XYZ	xyz(20.0176, 18.0070, 58.9091)
Luminance	0.1801 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F72CB #CBA84F

analogous

#4FB0CB #4F72CB #6A4FCB

triadic

#4F72CB #CB4F72 #72CB4F

tetradic

#4F72CB #CB4FB0 #CBA84F #4FCB6A

square

#4F72CB #CB4FB0 #CBA84F #4FCB6A

split-complementary

#4F72CB #CB6A4F #B0CB4F

monochromatic

#243D7B #3254AA #4F72CB #7E98D9 #ADBEE7

Accessibility & contrast

On white

4.56

#4F72CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#4F72CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F72CB

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F72CB	#FFFFFF	#000000	##000000
##4F72CB	1.00	4.56	4.60	4.60
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#497CCE

Deuteranopia (green-blind)

#3670C9

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4f72cb;
/* rgb */ color: rgb(79, 114, 203);
/* oklch */ color: oklch(57.0% 0.143 265.9);

Tailwind

colors: {
  custom: {
    50: '#8b9adb',
    500: '#4f72cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f72cb;
$custom-light: #8b9adb;
$custom-dark: #000000;

JSON

{
  "hex": "#4f72cb",
  "rgb": {
    "r": 79,
    "g": 114,
    "b": 203
  },
  "hsl": {
    "h": 223.065,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.56994,
    "c": 0.14302,
    "h": 265.9
  },
  "luminance": 0.18009
}

Semantic roles & 50–950 ramp

primary

#4F72CB

secondary

#D5C6A1

accent

#B44ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4F72CB

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

Preview Lab → · Contrast checker → · Palette generator →