#4B4BB7#4B4BB7

#4B4BB7 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.6% C 0.166 H 278.0°. Best body text is #FFFFFF at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#4B4BB7
RGB	rgb(75, 75, 183)
HSL	hsl(240, 43%, 51%)
HSV	hsv(240, 59%, 72%)
CMYK	cmyk(59%, 59%, 0%, 28.2%)
CIE-LAB	lab(37.75, 32.16, -57.38)
CIE-LCH	lch(37.75, 65.78, 299.27°)
OKLab	oklab(47.63% 0.0232 -0.1648)
OKLCH	oklch(47.63% 0.166 278)
XYZ	xyz(13.9622, 9.9459, 45.9746)
Luminance	0.0995 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B4BB7 #B7B74B

analogous

#4B81B7 #4B4BB7 #814BB7

triadic

#4B4BB7 #B74B4B #4BB74B

tetradic

#4B4BB7 #B74B81 #B7B74B #4BB781

square

#4B4BB7 #B74B81 #B7B74B #4BB781

split-complementary

#4B4BB7 #B7814B #81B74B

monochromatic

#272761 #38388D #4B4BB7 #7777C8 #A2A2DA

Accessibility & contrast

On white

7.02

#4B4BB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#4B4BB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B4BB7

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B4BB7	#FFFFFF	#000000	##FFFFFF
##4B4BB7	1.00	7.02	2.99	7.02
#FFFFFF	7.02	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBB

Deuteranopia (green-blind)

#0054B5

Tritanopia (blue-blind)

#006579

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4b4bb7;
/* rgb */ color: rgb(75, 75, 183);
/* oklch */ color: oklch(47.6% 0.166 278.0);

Tailwind

colors: {
  custom: {
    50: '#887dcd',
    500: '#4b4bb7',
    950: '#000000',
  },
}

SCSS

$custom: #4b4bb7;
$custom-light: #887dcd;
$custom-dark: #000000;

JSON

{
  "hex": "#4b4bb7",
  "rgb": {
    "r": 75,
    "g": 75,
    "b": 183
  },
  "hsl": {
    "h": 240,
    "s": 42.857,
    "l": 50.588
  },
  "oklch": {
    "l": 0.47632,
    "c": 0.16642,
    "h": 278
  },
  "luminance": 0.09947
}

Semantic roles & 50–950 ramp

primary

#4B4BB7

secondary

#C7C797

accent

#D355D3

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #4B4BB7

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

Preview Lab → · Contrast checker → · Palette generator →