#3340B3#3340B3

#3340B3 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.8% C 0.181 H 271.6°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#3340B3
RGB	rgb(51, 64, 179)
HSL	hsl(234, 56%, 45%)
HSV	hsv(234, 72%, 70%)
CMYK	cmyk(71.5%, 64.2%, 0%, 29.8%)
CIE-LAB	lab(33.19, 34.08, -62.51)
CIE-LCH	lch(33.19, 71.20, 298.60°)
OKLab	oklab(43.77% 0.005 -0.1806)
OKLCH	oklch(43.77% 0.181 271.6)
XYZ	xyz(11.3326, 7.6241, 43.5135)
Luminance	0.0762 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.52

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3340B3 #B3A633

analogous

#3380B3 #3340B3 #6633B3

triadic

#3340B3 #B33340 #40B333

tetradic

#3340B3 #B33380 #B3A633 #33B366

square

#3340B3 #B33380 #B3A633 #33B366

split-complementary

#3340B3 #B36633 #80B333

monochromatic

#181E54 #252F83 #3340B3 #5561CE #848DDC

Accessibility & contrast

On white

8.32

#3340B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3340B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3340B3

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3340B3	#FFFFFF	#000000	##FFFFFF
##3340B3	1.00	8.32	2.53	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B7

Deuteranopia (green-blind)

#0048B1

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3340b3;
/* rgb */ color: rgb(51, 64, 179);
/* oklch */ color: oklch(43.8% 0.181 271.6);

Tailwind

colors: {
  custom: {
    50: '#7d75cb',
    500: '#3340b3',
    950: '#000000',
  },
}

SCSS

$custom: #3340b3;
$custom-light: #7d75cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3340b3",
  "rgb": {
    "r": 51,
    "g": 64,
    "b": 179
  },
  "hsl": {
    "h": 233.906,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.43768,
    "c": 0.18064,
    "h": 271.6
  },
  "luminance": 0.07625
}

Semantic roles & 50–950 ramp

primary

#3340B3

secondary

#C6BE7C

accent

#D049DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3340B3

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

Preview Lab → · Contrast checker → · Palette generator →