#4B73CF#4B73CF

#4B73CF is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.3% C 0.149 H 264.5°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#4B73CF
RGB	rgb(75, 115, 207)
HSL	hsl(222, 58%, 55%)
HSV	hsv(222, 64%, 81%)
CMYK	cmyk(63.8%, 44.4%, 0%, 18.8%)
CIE-LAB	lab(49.81, 15.16, -51.83)
CIE-LCH	lch(49.81, 54.01, 286.31°)
OKLab	oklab(57.25% -0.0142 -0.148)
OKLCH	oklch(57.25% 0.149 264.5)
XYZ	xyz(20.2910, 18.2605, 61.4747)
Luminance	0.1826 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B73CF #CFA74B

analogous

#4BB5CF #4B73CF #654BCF

triadic

#4B73CF #CF4B73 #73CF4B

tetradic

#4B73CF #CF4BB5 #CFA74B #4BCF65

square

#4B73CF #CF4BB5 #CFA74B #4BCF65

split-complementary

#4B73CF #CF654B #B5CF4B

monochromatic

#223E7E #2E55AE #4B73CF #7B99DC #ACBEE9

Accessibility & contrast

On white

4.51

#4B73CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#4B73CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B73CF

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B73CF	#FFFFFF	#000000	##000000
##4B73CF	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#477DD2

Deuteranopia (green-blind)

#3171CD

Tritanopia (blue-blind)

#008897

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4b73cf;
/* rgb */ color: rgb(75, 115, 207);
/* oklch */ color: oklch(57.3% 0.149 264.5);

Tailwind

colors: {
  custom: {
    50: '#8a9ade',
    500: '#4b73cf',
    950: '#000000',
  },
}

SCSS

$custom: #4b73cf;
$custom-light: #8a9ade;
$custom-dark: #000000;

JSON

{
  "hex": "#4b73cf",
  "rgb": {
    "r": 75,
    "g": 115,
    "b": 207
  },
  "hsl": {
    "h": 221.818,
    "s": 57.895,
    "l": 55.294
  },
  "oklch": {
    "l": 0.5725,
    "c": 0.1487,
    "h": 264.5
  },
  "luminance": 0.18262
}

Semantic roles & 50–950 ramp

primary

#4B73CF

secondary

#D6C69F

accent

#B247E1

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4B73CF

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

Preview Lab → · Contrast checker → · Palette generator →