#4C64BB#4C64BB

#4C64BB is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.9% C 0.139 H 269.6°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4C64BB
RGB	rgb(76, 100, 187)
HSL	hsl(227, 45%, 52%)
HSV	hsv(227, 59%, 73%)
CMYK	cmyk(59.4%, 46.5%, 0%, 26.7%)
CIE-LAB	lab(44.57, 17.86, -48.71)
CIE-LCH	lch(44.57, 51.88, 290.14°)
OKLab	oklab(52.87% -0.001 -0.139)
OKLCH	oklch(52.87% 0.139 269.6)
XYZ	xyz(16.5043, 14.2374, 48.8824)
Luminance	0.1424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C64BB #BBA34C

analogous

#4C9CBB #4C64BB #6C4CBB

triadic

#4C64BB #BB4C64 #64BB4C

tetradic

#4C64BB #BB4C9C #BBA34C #4CBB6C

square

#4C64BB #BB4C9C #BBA34C #4CBB6C

split-complementary

#4C64BB #BB6C4C #9CBB4C

monochromatic

#273466 #384B92 #4C64BB #788ACC #A5B1DD

Accessibility & contrast

On white

5.46

#4C64BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#4C64BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C64BB

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C64BB	#FFFFFF	#000000	##FFFFFF
##4C64BB	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B6FBE

Deuteranopia (green-blind)

#2A65B9

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4c64bb;
/* rgb */ color: rgb(76, 100, 187);
/* oklch */ color: oklch(52.9% 0.139 269.6);

Tailwind

colors: {
  custom: {
    50: '#878fd0',
    500: '#4c64bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c64bb;
$custom-light: #878fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c64bb",
  "rgb": {
    "r": 76,
    "g": 100,
    "b": 187
  },
  "hsl": {
    "h": 227.027,
    "s": 44.939,
    "l": 51.569
  },
  "oklch": {
    "l": 0.52868,
    "c": 0.13901,
    "h": 269.6
  },
  "luminance": 0.14239
}

Semantic roles & 50–950 ramp

primary

#4C64BB

secondary

#CABF99

accent

#B953D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4C64BB

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

Preview Lab → · Contrast checker → · Palette generator →