#3B31BB#3B31BB

#3B31BB is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.7% C 0.205 H 276.4°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#3B31BB
RGB	rgb(59, 49, 187)
HSL	hsl(244, 58%, 46%)
HSV	hsv(244, 74%, 73%)
CMYK	cmyk(68.4%, 73.8%, 0%, 26.7%)
CIE-LAB	lab(31.14, 46.70, -70.59)
CIE-LCH	lch(31.14, 84.64, 303.49°)
OKLab	oklab(42.66% 0.023 -0.204)
OKLCH	oklch(42.66% 0.205 276.4)
XYZ	xyz(11.8687, 6.7132, 47.6744)
Luminance	0.0671 (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

#3B31BB #B1BB31

analogous

#316CBB #3B31BB #8031BB

triadic

#3B31BB #BB3B31 #31BB3B

tetradic

#3B31BB #BB316C #B1BB31 #31BB80

square

#3B31BB #BB316C #B1BB31 #31BB80

split-complementary

#3B31BB #BB8031 #6CBB31

monochromatic

#1C185A #2C248B #3B31BB #5F56D3 #8D87E0

Accessibility & contrast

On white

8.96

#3B31BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3B31BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B31BB

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B31BB	#FFFFFF	#000000	##FFFFFF
##3B31BB	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBF

Deuteranopia (green-blind)

#0043B9

Tritanopia (blue-blind)

#005873

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3b31bb;
/* rgb */ color: rgb(59, 49, 187);
/* oklch */ color: oklch(42.7% 0.205 276.4);

Tailwind

colors: {
  custom: {
    50: '#836bd1',
    500: '#3b31bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b31bb;
$custom-light: #836bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b31bb",
  "rgb": {
    "r": 59,
    "g": 49,
    "b": 187
  },
  "hsl": {
    "h": 244.348,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.42655,
    "c": 0.20527,
    "h": 276.4
  },
  "luminance": 0.06714
}

Semantic roles & 50–950 ramp

primary

#3B31BB

secondary

#C4C97F

accent

#E246D6

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3B31BB

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

Preview Lab → · Contrast checker → · Palette generator →