#3331B5#3331B5

#3331B5 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.5% C 0.200 H 274.0°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#3331B5
RGB	rgb(51, 49, 181)
HSL	hsl(241, 57%, 45%)
HSV	hsv(241, 73%, 71%)
CMYK	cmyk(71.8%, 72.9%, 0%, 29%)
CIE-LAB	lab(30.00, 43.91, -68.94)
CIE-LCH	lch(30.00, 81.73, 302.50°)
OKLab	oklab(41.52% 0.014 -0.1994)
OKLCH	oklch(41.52% 0.2 274)
XYZ	xyz(10.8013, 6.2356, 44.3415)
Luminance	0.0624 (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

#3331B5 #B3B531

analogous

#3171B5 #3331B5 #7531B5

triadic

#3331B5 #B53331 #31B533

tetradic

#3331B5 #B53171 #B3B531 #31B575

square

#3331B5 #B53171 #B3B531 #31B575

split-complementary

#3331B5 #B57531 #71B531

monochromatic

#181755 #252485 #3331B5 #5553D0 #8483DD

Accessibility & contrast

On white

9.34

#3331B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#3331B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3331B5

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3331B5	#FFFFFF	#000000	##FFFFFF
##3331B5	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB9

Deuteranopia (green-blind)

#0040B3

Tritanopia (blue-blind)

#005770

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3331b5;
/* rgb */ color: rgb(51, 49, 181);
/* oklch */ color: oklch(41.5% 0.200 274.0);

Tailwind

colors: {
  custom: {
    50: '#7e6bcc',
    500: '#3331b5',
    950: '#000000',
  },
}

SCSS

$custom: #3331b5;
$custom-light: #7e6bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3331b5",
  "rgb": {
    "r": 51,
    "g": 49,
    "b": 181
  },
  "hsl": {
    "h": 240.909,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.41519,
    "c": 0.19986,
    "h": 274
  },
  "luminance": 0.06237
}

Semantic roles & 50–950 ramp

primary

#3331B5

secondary

#C6C77B

accent

#E147DE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3331B5

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

Preview Lab → · Contrast checker → · Palette generator →