#4F73CC#4F73CC

#4F73CC is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.3% C 0.143 H 265.5°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4F73CC
RGB	rgb(79, 115, 204)
HSL	hsl(223, 55%, 55%)
HSV	hsv(223, 61%, 80%)
CMYK	cmyk(61.3%, 43.6%, 0%, 20%)
CIE-LAB	lab(49.84, 14.86, -50.07)
CIE-LCH	lch(49.84, 52.23, 286.53°)
OKLab	oklab(57.27% -0.0111 -0.1428)
OKLCH	oklch(57.27% 0.143 265.5)
XYZ	xyz(20.2505, 18.2816, 59.5766)
Luminance	0.1828 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F73CC #CCA84F

analogous

#4FB1CC #4F73CC #694FCC

triadic

#4F73CC #CC4F73 #73CC4F

tetradic

#4F73CC #CC4FB1 #CCA84F #4FCC69

square

#4F73CC #CC4FB1 #CCA84F #4FCC69

split-complementary

#4F73CC #CC694F #B1CC4F

monochromatic

#243E7D #3255AC #4F73CC #7E99DA #AEBEE7

Accessibility & contrast

On white

4.51

#4F73CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#4F73CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F73CC

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F73CC	#FFFFFF	#000000	##000000
##4F73CC	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7DCF

Deuteranopia (green-blind)

#3771CA

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4f73cc;
/* rgb */ color: rgb(79, 115, 204);
/* oklch */ color: oklch(57.3% 0.143 265.5);

Tailwind

colors: {
  custom: {
    50: '#8b9adc',
    500: '#4f73cc',
    950: '#000000',
  },
}

SCSS

$custom: #4f73cc;
$custom-light: #8b9adc;
$custom-dark: #000000;

JSON

{
  "hex": "#4f73cc",
  "rgb": {
    "r": 79,
    "g": 115,
    "b": 204
  },
  "hsl": {
    "h": 222.72,
    "s": 55.066,
    "l": 55.49
  },
  "oklch": {
    "l": 0.57267,
    "c": 0.1432,
    "h": 265.5
  },
  "luminance": 0.18283
}

Semantic roles & 50–950 ramp

primary

#4F73CC

secondary

#D5C6A1

accent

#B349DE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4F73CC

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

Preview Lab → · Contrast checker → · Palette generator →