#4F73B2#4F73B2

#4F73B2 is a mid, moderate blue. Relative luminance 0.171; OKLCH L 55.7% C 0.107 H 261.0°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#4F73B2
RGB	rgb(79, 115, 178)
HSL	hsl(218, 39%, 50%)
HSV	hsv(218, 56%, 70%)
CMYK	cmyk(55.6%, 35.4%, 0%, 30.2%)
CIE-LAB	lab(48.43, 6.12, -37.33)
CIE-LCH	lch(48.43, 37.83, 279.31°)
OKLab	oklab(55.73% -0.0167 -0.1055)
OKLCH	oklch(55.73% 0.107 261)
XYZ	xyz(17.3883, 17.1367, 44.5023)
Luminance	0.1714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F73B2 #B28E4F

analogous

#4FA4B2 #4F73B2 #5D4FB2

triadic

#4F73B2 #B24F73 #73B24F

tetradic

#4F73B2 #B24FA4 #B28E4F #4FB25D

square

#4F73B2 #B24FA4 #B28E4F #4FB25D

split-complementary

#4F73B2 #B25D4F #A4B24F

monochromatic

#293C5E #3C5788 #4F73B2 #7A95C5 #A4B7D7

Accessibility & contrast

On white

4.74

#4F73B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#4F73B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F73B2

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F73B2	#FFFFFF	#000000	##FFFFFF
##4F73B2	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A78B5

Deuteranopia (green-blind)

#4D6FB1

Tritanopia (blue-blind)

#11818A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4f73b2;
/* rgb */ color: rgb(79, 115, 178);
/* oklch */ color: oklch(55.7% 0.107 261.0);

Tailwind

colors: {
  custom: {
    50: '#879bc9',
    500: '#4f73b2',
    950: '#000000',
  },
}

SCSS

$custom: #4f73b2;
$custom-light: #879bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#4f73b2",
  "rgb": {
    "r": 79,
    "g": 115,
    "b": 178
  },
  "hsl": {
    "h": 218.182,
    "s": 39.13,
    "l": 50.392
  },
  "oklch": {
    "l": 0.55725,
    "c": 0.1068,
    "h": 261
  },
  "luminance": 0.17138
}

Semantic roles & 50–950 ramp

primary

#4F73B2

secondary

#C4B498

accent

#A459CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4F73B2

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

Preview Lab → · Contrast checker → · Palette generator →