#3340BF#3340BF

#3340BF is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.9% C 0.196 H 271.2°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#3340BF
RGB	rgb(51, 64, 191)
HSL	hsl(234, 58%, 47%)
HSV	hsv(234, 73%, 75%)
CMYK	cmyk(73.3%, 66.5%, 0%, 25.1%)
CIE-LAB	lab(34.25, 38.33, -67.85)
CIE-LCH	lch(34.25, 77.92, 299.46°)
OKLab	oklab(44.88% 0.0042 -0.1962)
OKLCH	oklch(44.88% 0.196 271.2)
XYZ	xyz(12.5994, 8.1309, 50.1855)
Luminance	0.0813 (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

#3340BF #BFB233

analogous

#3386BF #3340BF #6C33BF

triadic

#3340BF #BF3340 #40BF33

tetradic

#3340BF #BF3386 #BFB233 #33BF6C

square

#3340BF #BF3386 #BFB233 #33BF6C

split-complementary

#3340BF #BF6C33 #86BF33

monochromatic

#19205E #26308F #3340BF #5C67D3 #8C94E0

Accessibility & contrast

On white

8.00

#3340BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3340BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3340BF

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3340BF	#FFFFFF	#000000	##FFFFFF
##3340BF	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C3

Deuteranopia (green-blind)

#004ABD

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3340bf;
/* rgb */ color: rgb(51, 64, 191);
/* oklch */ color: oklch(44.9% 0.196 271.2);

Tailwind

colors: {
  custom: {
    50: '#7f75d3',
    500: '#3340bf',
    950: '#000000',
  },
}

SCSS

$custom: #3340bf;
$custom-light: #7f75d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3340bf",
  "rgb": {
    "r": 51,
    "g": 64,
    "b": 191
  },
  "hsl": {
    "h": 234.429,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44875,
    "c": 0.19623,
    "h": 271.2
  },
  "luminance": 0.08132
}

Semantic roles & 50–950 ramp

primary

#3340BF

secondary

#CBC483

accent

#D347E1

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3340BF

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

Preview Lab → · Contrast checker → · Palette generator →