#3340AB#3340AB

#3340AB is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.170 H 271.8°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#3340AB
RGB	rgb(51, 64, 171)
HSL	hsl(234, 54%, 44%)
HSV	hsv(234, 70%, 67%)
CMYK	cmyk(70.2%, 62.6%, 0%, 32.9%)
CIE-LAB	lab(32.50, 31.21, -58.87)
CIE-LCH	lch(32.50, 66.63, 297.93°)
OKLab	oklab(43.05% 0.0054 -0.1699)
OKLCH	oklch(43.05% 0.17 271.8)
XYZ	xyz(10.5468, 7.3099, 39.3753)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.36

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3340AB #AB9E33

analogous

#337CAB #3340AB #6233AB

triadic

#3340AB #AB3340 #40AB33

tetradic

#3340AB #AB337C #AB9E33 #33AB62

square

#3340AB #AB337C #AB9E33 #33AB62

split-complementary

#3340AB #AB6233 #7CAB33

monochromatic

#171D4D #252E7C #3340AB #505ECB #7F89D9

Accessibility & contrast

On white

8.53

#3340AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3340AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3340AB

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3340AB	#FFFFFF	#000000	##FFFFFF
##3340AB	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AE

Deuteranopia (green-blind)

#0047A9

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3340ab;
/* rgb */ color: rgb(51, 64, 171);
/* oklch */ color: oklch(43.1% 0.170 271.8);

Tailwind

colors: {
  custom: {
    50: '#7b74c5',
    500: '#3340ab',
    950: '#000000',
  },
}

SCSS

$custom: #3340ab;
$custom-light: #7b74c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3340ab",
  "rgb": {
    "r": 51,
    "g": 64,
    "b": 171
  },
  "hsl": {
    "h": 233.5,
    "s": 54.054,
    "l": 43.529
  },
  "oklch": {
    "l": 0.43052,
    "c": 0.16997,
    "h": 271.8
  },
  "luminance": 0.07311
}

Semantic roles & 50–950 ramp

primary

#3340AB

secondary

#C2BA78

accent

#CD4ADD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3340AB

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

Preview Lab → · Contrast checker → · Palette generator →