#4F73BF#4F73BF

#4F73BF is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.5% C 0.125 H 263.7°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4F73BF
RGB	rgb(79, 115, 191)
HSL	hsl(221, 47%, 53%)
HSV	hsv(221, 59%, 75%)
CMYK	cmyk(58.6%, 39.8%, 0%, 25.1%)
CIE-LAB	lab(49.11, 10.45, -43.78)
CIE-LCH	lch(49.11, 45.01, 283.42°)
OKLab	oklab(56.47% -0.0137 -0.1243)
OKLCH	oklch(56.47% 0.125 263.7)
XYZ	xyz(18.7559, 17.6838, 51.7050)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F73BF #BF9B4F

analogous

#4FABBF #4F73BF #634FBF

triadic

#4F73BF #BF4F73 #73BF4F

tetradic

#4F73BF #BF4FAB #BF9B4F #4FBF63

square

#4F73BF #BF4FAB #BF9B4F #4FBF63

split-complementary

#4F73BF #BF634F #ABBF4F

monochromatic

#273D6C #385799 #4F73BF #7C97CF #A9BAE0

Accessibility & contrast

On white

4.63

#4F73BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#4F73BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4F73BF

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F73BF	#FFFFFF	#000000	##FFFFFF
##4F73BF	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#537AC2

Deuteranopia (green-blind)

#4470BD

Tritanopia (blue-blind)

#008490

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4f73bf;
/* rgb */ color: rgb(79, 115, 191);
/* oklch */ color: oklch(56.5% 0.125 263.7);

Tailwind

colors: {
  custom: {
    50: '#899ad3',
    500: '#4f73bf',
    950: '#000000',
  },
}

SCSS

$custom: #4f73bf;
$custom-light: #899ad3;
$custom-dark: #000000;

JSON

{
  "hex": "#4f73bf",
  "rgb": {
    "r": 79,
    "g": 115,
    "b": 191
  },
  "hsl": {
    "h": 220.714,
    "s": 46.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.56472,
    "c": 0.12505,
    "h": 263.7
  },
  "luminance": 0.17685
}

Semantic roles & 50–950 ramp

primary

#4F73BF

secondary

#CDBE9D

accent

#AC51D6

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #4F73BF

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

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