#3331B2#3331B2

#3331B2 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.2% C 0.196 H 274.3°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#3331B2
RGB	rgb(51, 49, 178)
HSL	hsl(241, 57%, 45%)
HSV	hsv(241, 72%, 70%)
CMYK	cmyk(71.3%, 72.5%, 0%, 30.2%)
CIE-LAB	lab(29.70, 42.92, -67.65)
CIE-LCH	lch(29.70, 80.11, 302.39°)
OKLab	oklab(41.21% 0.0145 -0.1956)
OKLCH	oklch(41.21% 0.196 274.3)
XYZ	xyz(10.4968, 6.1138, 42.7377)
Luminance	0.0612 (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

#3331B2 #B0B231

analogous

#3170B2 #3331B2 #7431B2

triadic

#3331B2 #B23331 #31B233

tetradic

#3331B2 #B23170 #B0B231 #31B274

square

#3331B2 #B23170 #B0B231 #31B274

split-complementary

#3331B2 #B27431 #70B231

monochromatic

#181752 #252482 #3331B2 #5351CF #8281DC

Accessibility & contrast

On white

9.45

#3331B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#3331B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3331B2

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3331B2	#FFFFFF	#000000	##FFFFFF
##3331B2	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB6

Deuteranopia (green-blind)

#0040B0

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3331b2;
/* rgb */ color: rgb(51, 49, 178);
/* oklch */ color: oklch(41.2% 0.196 274.3);

Tailwind

colors: {
  custom: {
    50: '#7e6aca',
    500: '#3331b2',
    950: '#000000',
  },
}

SCSS

$custom: #3331b2;
$custom-light: #7e6aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3331b2",
  "rgb": {
    "r": 51,
    "g": 49,
    "b": 178
  },
  "hsl": {
    "h": 240.93,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41213,
    "c": 0.19615,
    "h": 274.3
  },
  "luminance": 0.06115
}

Semantic roles & 50–950 ramp

primary

#3331B2

secondary

#C4C579

accent

#E048DE

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3331B2

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

Preview Lab → · Contrast checker → · Palette generator →