#4339AB#4339AB

#4339AB is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.9% C 0.175 H 280.0°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#4339AB
RGB	rgb(67, 57, 171)
HSL	hsl(245, 50%, 45%)
HSV	hsv(245, 67%, 67%)
CMYK	cmyk(60.8%, 66.7%, 0%, 32.9%)
CIE-LAB	lab(31.94, 37.95, -59.74)
CIE-LCH	lch(31.94, 70.77, 302.43°)
OKLab	oklab(42.93% 0.0304 -0.172)
OKLCH	oklch(42.93% 0.175 280)
XYZ	xyz(11.1262, 7.0590, 39.2964)
Luminance	0.0706 (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

#4339AB #A1AB39

analogous

#3968AB #4339AB #7C39AB

triadic

#4339AB #AB4339 #39AB43

tetradic

#4339AB #AB3968 #A1AB39 #39AB7C

square

#4339AB #AB3968 #A1AB39 #39AB7C

split-complementary

#4339AB #AB7C39 #68AB39

monochromatic

#1F1A4F #312A7D #4339AB #6359C8 #8E87D7

Accessibility & contrast

On white

8.71

#4339AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#4339AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4339AB

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4339AB	#FFFFFF	#000000	##FFFFFF
##4339AB	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAF

Deuteranopia (green-blind)

#0047A9

Tritanopia (blue-blind)

#00566D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4339ab;
/* rgb */ color: rgb(67, 57, 171);
/* oklch */ color: oklch(42.9% 0.175 280.0);

Tailwind

colors: {
  custom: {
    50: '#8370c5',
    500: '#4339ab',
    950: '#000000',
  },
}

SCSS

$custom: #4339ab;
$custom-light: #8370c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4339ab",
  "rgb": {
    "r": 67,
    "g": 57,
    "b": 171
  },
  "hsl": {
    "h": 245.263,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42927,
    "c": 0.17471,
    "h": 280
  },
  "luminance": 0.0706
}

Semantic roles & 50–950 ramp

primary

#4339AB

secondary

#BBC17F

accent

#DA4ECD

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4339AB

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

Preview Lab → · Contrast checker → · Palette generator →