#3331B1#3331B1

#3331B1 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.1% C 0.195 H 274.3°. Best body text is #FFFFFF at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#3331B1
RGB	rgb(51, 49, 177)
HSL	hsl(241, 57%, 44%)
HSV	hsv(241, 72%, 69%)
CMYK	cmyk(71.2%, 72.3%, 0%, 30.6%)
CIE-LAB	lab(29.60, 42.58, -67.21)
CIE-LCH	lch(29.60, 79.57, 302.35°)
OKLab	oklab(41.11% 0.0147 -0.1943)
OKLCH	oklch(41.11% 0.195 274.3)
XYZ	xyz(10.3967, 6.0738, 42.2109)
Luminance	0.0607 (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

#3331B1 #AFB131

analogous

#316FB1 #3331B1 #7331B1

triadic

#3331B1 #B13331 #31B133

tetradic

#3331B1 #B1316F #AFB131 #31B173

square

#3331B1 #B1316F #AFB131 #31B173

split-complementary

#3331B1 #B17331 #6FB131

monochromatic

#171651 #252481 #3331B1 #5251CF #8280DC

Accessibility & contrast

On white

9.48

#3331B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#3331B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3331B1

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3331B1	#FFFFFF	#000000	##FFFFFF
##3331B1	1.00	9.48	2.22	9.48
#FFFFFF	9.48	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB5

Deuteranopia (green-blind)

#0040AF

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3331b1;
/* rgb */ color: rgb(51, 49, 177);
/* oklch */ color: oklch(41.1% 0.195 274.3);

Tailwind

colors: {
  custom: {
    50: '#7d6aca',
    500: '#3331b1',
    950: '#000000',
  },
}

SCSS

$custom: #3331b1;
$custom-light: #7d6aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3331b1",
  "rgb": {
    "r": 51,
    "g": 49,
    "b": 177
  },
  "hsl": {
    "h": 240.938,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.41112,
    "c": 0.19491,
    "h": 274.3
  },
  "luminance": 0.06075
}

Semantic roles & 50–950 ramp

primary

#3331B1

secondary

#C4C579

accent

#E048DE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3331B1

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

Preview Lab → · Contrast checker → · Palette generator →