#4B39BB#4B39BB

#4B39BB is a mid, vivid blue. Relative luminance 0.080; OKLCH L 45.0% C 0.194 H 281.6°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#4B39BB
RGB	rgb(75, 57, 187)
HSL	hsl(248, 53%, 48%)
HSV	hsv(248, 70%, 73%)
CMYK	cmyk(59.9%, 69.5%, 0%, 26.7%)
CIE-LAB	lab(34.00, 44.26, -65.84)
CIE-LCH	lch(34.00, 79.34, 303.91°)
OKLab	oklab(45.01% 0.0388 -0.1897)
OKLCH	oklch(45.01% 0.194 281.6)
XYZ	xyz(13.3316, 8.0090, 47.8475)
Luminance	0.0801 (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

#4B39BB #A9BB39

analogous

#3968BB #4B39BB #8C39BB

triadic

#4B39BB #BB4B39 #39BB4B

tetradic

#4B39BB #BB3968 #A9BB39 #39BB8C

square

#4B39BB #BB3968 #A9BB39 #39BB8C

split-complementary

#4B39BB #BB8C39 #68BB39

monochromatic

#251C5D #382B8C #4B39BB #7162CF #9C91DD

Accessibility & contrast

On white

8.07

#4B39BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#4B39BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B39BB

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B39BB	#FFFFFF	#000000	##FFFFFF
##4B39BB	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BF

Deuteranopia (green-blind)

#004BB9

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4b39bb;
/* rgb */ color: rgb(75, 57, 187);
/* oklch */ color: oklch(45.0% 0.194 281.6);

Tailwind

colors: {
  custom: {
    50: '#8a71d1',
    500: '#4b39bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b39bb;
$custom-light: #8a71d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4b39bb",
  "rgb": {
    "r": 75,
    "g": 57,
    "b": 187
  },
  "hsl": {
    "h": 248.308,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.45008,
    "c": 0.19364,
    "h": 281.6
  },
  "luminance": 0.0801
}

Semantic roles & 50–950 ramp

primary

#4B39BB

secondary

#BFC887

accent

#DD4BC9

background

#F9F6FC

surface

#F1ECF9

border

#CBC7D2

text

#0D0814

muted

#7E7B82

Preview Lab

Preview with #4B39BB

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

Preview Lab → · Contrast checker → · Palette generator →