#3343B3#3343B3

#3343B3 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.3% C 0.177 H 270.9°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#3343B3
RGB	rgb(51, 67, 179)
HSL	hsl(233, 56%, 45%)
HSV	hsv(233, 72%, 70%)
CMYK	cmyk(71.5%, 62.6%, 0%, 29.8%)
CIE-LAB	lab(33.92, 32.16, -61.31)
CIE-LCH	lch(33.92, 69.23, 297.68°)
OKLab	oklab(44.31% 0.0029 -0.177)
OKLCH	oklch(44.31% 0.177 270.9)
XYZ	xyz(11.5063, 7.9716, 43.5714)
Luminance	0.0797 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3343B3 #B3A333

analogous

#3383B3 #3343B3 #6333B3

triadic

#3343B3 #B33343 #43B333

tetradic

#3343B3 #B33383 #B3A333 #33B363

square

#3343B3 #B33383 #B3A333 #33B363

split-complementary

#3343B3 #B36333 #83B333

monochromatic

#181F54 #253183 #3343B3 #5564CE #848FDC

Accessibility & contrast

On white

8.09

#3343B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3343B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3343B3

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3343B3	#FFFFFF	#000000	##FFFFFF
##3343B3	1.00	8.09	2.59	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B7

Deuteranopia (green-blind)

#004AB1

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3343b3;
/* rgb */ color: rgb(51, 67, 179);
/* oklch */ color: oklch(44.3% 0.177 270.9);

Tailwind

colors: {
  custom: {
    50: '#7c77cb',
    500: '#3343b3',
    950: '#000000',
  },
}

SCSS

$custom: #3343b3;
$custom-light: #7c77cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3343b3",
  "rgb": {
    "r": 51,
    "g": 67,
    "b": 179
  },
  "hsl": {
    "h": 232.5,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.44309,
    "c": 0.17704,
    "h": 270.9
  },
  "luminance": 0.07973
}

Semantic roles & 50–950 ramp

primary

#3343B3

secondary

#C6BC7C

accent

#CC49DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3343B3

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

Preview Lab → · Contrast checker → · Palette generator →