#4B72CB#4B72CB

#4B72CB is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.8% C 0.144 H 264.5°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#4B72CB
RGB	rgb(75, 114, 203)
HSL	hsl(222, 55%, 55%)
HSV	hsv(222, 63%, 80%)
CMYK	cmyk(63.1%, 43.8%, 0%, 20.4%)
CIE-LAB	lab(49.30, 14.40, -50.36)
CIE-LCH	lch(49.30, 52.38, 285.96°)
OKLab	oklab(56.78% -0.0139 -0.1437)
OKLCH	oklch(56.78% 0.144 264.5)
XYZ	xyz(19.6947, 17.8405, 58.8940)
Luminance	0.1784 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B72CB #CBA44B

analogous

#4BB2CB #4B72CB #644BCB

triadic

#4B72CB #CB4B72 #72CB4B

tetradic

#4B72CB #CB4BB2 #CBA44B #4BCB64

square

#4B72CB #CB4BB2 #CBA44B #4BCB64

split-complementary

#4B72CB #CB644B #B2CB4B

monochromatic

#233D79 #3155A8 #4B72CB #7A97D9 #AABCE6

Accessibility & contrast

On white

4.60

#4B72CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#4B72CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4B72CB

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B72CB	#FFFFFF	#000000	##FFFFFF
##4B72CB	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#487BCE

Deuteranopia (green-blind)

#3470C9

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4b72cb;
/* rgb */ color: rgb(75, 114, 203);
/* oklch */ color: oklch(56.8% 0.144 264.5);

Tailwind

colors: {
  custom: {
    50: '#899adb',
    500: '#4b72cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b72cb;
$custom-light: #899adb;
$custom-dark: #000000;

JSON

{
  "hex": "#4b72cb",
  "rgb": {
    "r": 75,
    "g": 114,
    "b": 203
  },
  "hsl": {
    "h": 221.719,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.56784,
    "c": 0.14439,
    "h": 264.5
  },
  "luminance": 0.17842
}

Semantic roles & 50–950 ramp

primary

#4B72CB

secondary

#D4C39E

accent

#B149DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #4B72CB

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

Preview Lab → · Contrast checker → · Palette generator →