#4C73CB#4C73CB

#4C73CB is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.0% C 0.143 H 264.4°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#4C73CB
RGB	rgb(76, 115, 203)
HSL	hsl(222, 55%, 55%)
HSV	hsv(222, 63%, 80%)
CMYK	cmyk(62.6%, 43.3%, 0%, 20.4%)
CIE-LAB	lab(49.63, 13.96, -49.84)
CIE-LCH	lch(49.63, 51.76, 285.65°)
OKLab	oklab(57.05% -0.014 -0.1421)
OKLCH	oklch(57.05% 0.143 264.4)
XYZ	xyz(19.8870, 18.1080, 58.9355)
Luminance	0.1811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C73CB #CBA44C

analogous

#4CB2CB #4C73CB #654CCB

triadic

#4C73CB #CB4C73 #73CB4C

tetradic

#4C73CB #CB4CB2 #CBA44C #4CCB65

square

#4C73CB #CB4CB2 #CBA44C #4CCB65

split-complementary

#4C73CB #CB654C #B2CB4C

monochromatic

#233E79 #3156A9 #4C73CB #7B98D9 #ABBDE7

Accessibility & contrast

On white

4.54

#4C73CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#4C73CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C73CB

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C73CB	#FFFFFF	#000000	##000000
##4C73CB	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7CCE

Deuteranopia (green-blind)

#3771C9

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4c73cb;
/* rgb */ color: rgb(76, 115, 203);
/* oklch */ color: oklch(57.0% 0.143 264.4);

Tailwind

colors: {
  custom: {
    50: '#899adb',
    500: '#4c73cb',
    950: '#000000',
  },
}

SCSS

$custom: #4c73cb;
$custom-light: #899adb;
$custom-dark: #000000;

JSON

{
  "hex": "#4c73cb",
  "rgb": {
    "r": 76,
    "g": 115,
    "b": 203
  },
  "hsl": {
    "h": 221.575,
    "s": 54.978,
    "l": 54.706
  },
  "oklch": {
    "l": 0.57047,
    "c": 0.14284,
    "h": 264.4
  },
  "luminance": 0.1811
}

Semantic roles & 50–950 ramp

primary

#4C73CB

secondary

#D4C49F

accent

#B149DE

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #4C73CB

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

Preview Lab → · Contrast checker → · Palette generator →