#3340B7#3340B7

#3340B7 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.1% C 0.186 H 271.5°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3340B7
RGB	rgb(51, 64, 183)
HSL	hsl(234, 56%, 46%)
HSV	hsv(234, 72%, 72%)
CMYK	cmyk(72.1%, 65%, 0%, 28.2%)
CIE-LAB	lab(33.54, 35.50, -64.31)
CIE-LCH	lch(33.54, 73.46, 298.90°)
OKLab	oklab(44.13% 0.0048 -0.1858)
OKLCH	oklch(44.13% 0.186 271.5)
XYZ	xyz(11.7430, 7.7883, 45.6750)
Luminance	0.0779 (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

#3340B7 #B7AA33

analogous

#3382B7 #3340B7 #6833B7

triadic

#3340B7 #B73340 #40B733

tetradic

#3340B7 #B73382 #B7AA33 #33B768

square

#3340B7 #B73382 #B7AA33 #33B768

split-complementary

#3340B7 #B76833 #82B733

monochromatic

#181F57 #262F87 #3340B7 #5763D0 #878FDE

Accessibility & contrast

On white

8.21

#3340B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3340B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3340B7

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3340B7	#FFFFFF	#000000	##FFFFFF
##3340B7	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BB

Deuteranopia (green-blind)

#0049B5

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3340b7;
/* rgb */ color: rgb(51, 64, 183);
/* oklch */ color: oklch(44.1% 0.186 271.5);

Tailwind

colors: {
  custom: {
    50: '#7d75ce',
    500: '#3340b7',
    950: '#000000',
  },
}

SCSS

$custom: #3340b7;
$custom-light: #7d75ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3340b7",
  "rgb": {
    "r": 51,
    "g": 64,
    "b": 183
  },
  "hsl": {
    "h": 234.091,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.44133,
    "c": 0.18589,
    "h": 271.5
  },
  "luminance": 0.07789
}

Semantic roles & 50–950 ramp

primary

#3340B7

secondary

#C7C07F

accent

#D148E0

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3340B7

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

Preview Lab → · Contrast checker → · Palette generator →