#3340B5#3340B5

#3340B5 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.0% C 0.183 H 271.5°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#3340B5
RGB	rgb(51, 64, 181)
HSL	hsl(234, 56%, 45%)
HSV	hsv(234, 72%, 71%)
CMYK	cmyk(71.8%, 64.6%, 0%, 29%)
CIE-LAB	lab(33.36, 34.79, -63.41)
CIE-LCH	lch(33.36, 72.33, 298.75°)
OKLab	oklab(43.95% 0.0049 -0.1832)
OKLCH	oklch(43.95% 0.183 271.5)
XYZ	xyz(11.5363, 7.7056, 44.5865)
Luminance	0.0771 (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

#3340B5 #B5A833

analogous

#3381B5 #3340B5 #6733B5

triadic

#3340B5 #B53340 #40B533

tetradic

#3340B5 #B53381 #B5A833 #33B567

square

#3340B5 #B53381 #B5A833 #33B567

split-complementary

#3340B5 #B56733 #81B533

monochromatic

#181E56 #262F85 #3340B5 #5662CF #868EDD

Accessibility & contrast

On white

8.26

#3340B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3340B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3340B5

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3340B5	#FFFFFF	#000000	##FFFFFF
##3340B5	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B9

Deuteranopia (green-blind)

#0048B3

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3340b5;
/* rgb */ color: rgb(51, 64, 181);
/* oklch */ color: oklch(44.0% 0.183 271.5);

Tailwind

colors: {
  custom: {
    50: '#7d75cc',
    500: '#3340b5',
    950: '#000000',
  },
}

SCSS

$custom: #3340b5;
$custom-light: #7d75cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3340b5",
  "rgb": {
    "r": 51,
    "g": 64,
    "b": 181
  },
  "hsl": {
    "h": 234,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4395,
    "c": 0.18328,
    "h": 271.5
  },
  "luminance": 0.07707
}

Semantic roles & 50–950 ramp

primary

#3340B5

secondary

#C6BF7D

accent

#D048DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3340B5

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

Preview Lab → · Contrast checker → · Palette generator →