#3340B4#3340B4

#3340B4 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.9% C 0.182 H 271.6°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#3340B4
RGB	rgb(51, 64, 180)
HSL	hsl(234, 56%, 45%)
HSV	hsv(234, 72%, 71%)
CMYK	cmyk(71.7%, 64.4%, 0%, 29.4%)
CIE-LAB	lab(33.27, 34.44, -62.96)
CIE-LCH	lch(33.27, 71.76, 298.68°)
OKLab	oklab(43.86% 0.005 -0.1819)
OKLCH	oklch(43.86% 0.182 271.6)
XYZ	xyz(11.4341, 7.6647, 44.0480)
Luminance	0.0767 (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

#3340B4 #B4A733

analogous

#3381B4 #3340B4 #6633B4

triadic

#3340B4 #B43340 #40B433

tetradic

#3340B4 #B43381 #B4A733 #33B466

square

#3340B4 #B43381 #B4A733 #33B466

split-complementary

#3340B4 #B46633 #81B433

monochromatic

#181E55 #252F84 #3340B4 #5562CF #858EDC

Accessibility & contrast

On white

8.29

#3340B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3340B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3340B4

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3340B4	#FFFFFF	#000000	##FFFFFF
##3340B4	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B8

Deuteranopia (green-blind)

#0048B2

Tritanopia (blue-blind)

#005E74

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3340b4;
/* rgb */ color: rgb(51, 64, 180);
/* oklch */ color: oklch(43.9% 0.182 271.6);

Tailwind

colors: {
  custom: {
    50: '#7d75cb',
    500: '#3340b4',
    950: '#000000',
  },
}

SCSS

$custom: #3340b4;
$custom-light: #7d75cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3340b4",
  "rgb": {
    "r": 51,
    "g": 64,
    "b": 180
  },
  "hsl": {
    "h": 233.953,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43859,
    "c": 0.18196,
    "h": 271.6
  },
  "luminance": 0.07666
}

Semantic roles & 50–950 ramp

primary

#3340B4

secondary

#C6BF7D

accent

#D049DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3340B4

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

Preview Lab → · Contrast checker → · Palette generator →