#3B31DB#3B31DB

#3B31DB is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 46.0% C 0.243 H 273.8°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#3B31DB
RGB	rgb(59, 49, 219)
HSL	hsl(244, 70%, 53%)
HSV	hsv(244, 78%, 86%)
CMYK	cmyk(73.1%, 77.6%, 0%, 14.1%)
CIE-LAB	lab(34.48, 56.68, -83.73)
CIE-LCH	lch(34.48, 101.11, 304.09°)
OKLab	oklab(45.99% 0.0161 -0.2422)
OKLCH	oklch(45.99% 0.243 273.8)
XYZ	xyz(15.6839, 8.2393, 67.7679)
Luminance	0.0824 (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

#3B31DB #D1DB31

analogous

#317CDB #3B31DB #9031DB

triadic

#3B31DB #DB3B31 #31DB3B

tetradic

#3B31DB #DB317C #D1DB31 #31DB90

square

#3B31DB #DB317C #D1DB31 #31DB90

split-complementary

#3B31DB #DB9031 #7CDB31

monochromatic

#1C167C #271FB0 #3B31DB #6D65E4 #9E99ED

Accessibility & contrast

On white

7.93

#3B31DB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3B31DB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B31DB

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B31DB	#FFFFFF	#000000	##FFFFFF
##3B31DB	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059E0

Deuteranopia (green-blind)

#0049D8

Tritanopia (blue-blind)

#006586

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3b31db;
/* rgb */ color: rgb(59, 49, 219);
/* oklch */ color: oklch(46.0% 0.243 273.8);

Tailwind

colors: {
  custom: {
    50: '#8a6de8',
    500: '#3b31db',
    950: '#000000',
  },
}

SCSS

$custom: #3b31db;
$custom-light: #8a6de8;
$custom-dark: #000000;

JSON

{
  "hex": "#3b31db",
  "rgb": {
    "r": 59,
    "g": 49,
    "b": 219
  },
  "hsl": {
    "h": 243.529,
    "s": 70.248,
    "l": 52.549
  },
  "oklch": {
    "l": 0.45987,
    "c": 0.24276,
    "h": 273.8
  },
  "luminance": 0.08241
}

Semantic roles & 50–950 ramp

primary

#3B31DB

secondary

#D4D98F

accent

#ED3BE3

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0E0716

muted

#7E7A84

Preview Lab

Preview with #3B31DB

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

Preview Lab → · Contrast checker → · Palette generator →