#3340AA#3340AA

#3340AA is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.0% C 0.169 H 271.8°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#3340AA
RGB	rgb(51, 64, 170)
HSL	hsl(233, 54%, 43%)
HSV	hsv(233, 70%, 67%)
CMYK	cmyk(70%, 62.4%, 0%, 33.3%)
CIE-LAB	lab(32.42, 30.85, -58.40)
CIE-LCH	lch(32.42, 66.05, 297.84°)
OKLab	oklab(42.96% 0.0054 -0.1685)
OKLCH	oklch(42.96% 0.169 271.8)
XYZ	xyz(10.4519, 7.2719, 38.8752)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3340AA #AA9D33

analogous

#337BAA #3340AA #6133AA

triadic

#3340AA #AA3340 #40AA33

tetradic

#3340AA #AA337B #AA9D33 #33AA61

square

#3340AA #AA337B #AA9D33 #33AA61

split-complementary

#3340AA #AA6133 #7BAA33

monochromatic

#171D4C #252E7B #3340AA #505DCA #7F89D9

Accessibility & contrast

On white

8.56

#3340AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3340AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3340AA

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3340AA	#FFFFFF	#000000	##FFFFFF
##3340AA	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AD

Deuteranopia (green-blind)

#0047A8

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3340aa;
/* rgb */ color: rgb(51, 64, 170);
/* oklch */ color: oklch(43.0% 0.169 271.8);

Tailwind

colors: {
  custom: {
    50: '#7b74c4',
    500: '#3340aa',
    950: '#000000',
  },
}

SCSS

$custom: #3340aa;
$custom-light: #7b74c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3340aa",
  "rgb": {
    "r": 51,
    "g": 64,
    "b": 170
  },
  "hsl": {
    "h": 233.445,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42964,
    "c": 0.16862,
    "h": 271.8
  },
  "luminance": 0.07273
}

Semantic roles & 50–950 ramp

primary

#3340AA

secondary

#C2B977

accent

#CD4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3340AA

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

Preview Lab → · Contrast checker → · Palette generator →