#3439AC#3439AC

#3439AC is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.0% C 0.179 H 273.7°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#3439AC
RGB	rgb(52, 57, 172)
HSL	hsl(238, 54%, 44%)
HSV	hsv(238, 70%, 67%)
CMYK	cmyk(69.8%, 66.9%, 0%, 32.5%)
CIE-LAB	lab(30.96, 36.15, -61.99)
CIE-LCH	lch(30.96, 71.76, 300.25°)
OKLab	oklab(41.97% 0.0115 -0.179)
OKLCH	oklch(41.97% 0.179 273.7)
XYZ	xyz(10.3232, 6.6339, 39.7582)
Luminance	0.0664 (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

#3439AC #ACA734

analogous

#3475AC #3439AC #6B34AC

triadic

#3439AC #AC3439 #39AC34

tetradic

#3439AC #AC3475 #ACA734 #34AC6B

square

#3439AC #AC3475 #ACA734 #34AC6B

split-complementary

#3439AC #AC6B34 #75AC34

monochromatic

#181A4E #26297D #3439AC #5257CB #8185D9

Accessibility & contrast

On white

9.02

#3439AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#3439AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3439AC

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3439AC	#FFFFFF	#000000	##FFFFFF
##3439AC	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB0

Deuteranopia (green-blind)

#0043AA

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3439ac;
/* rgb */ color: rgb(52, 57, 172);
/* oklch */ color: oklch(42.0% 0.179 273.7);

Tailwind

colors: {
  custom: {
    50: '#7c70c6',
    500: '#3439ac',
    950: '#000000',
  },
}

SCSS

$custom: #3439ac;
$custom-light: #7c70c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3439ac",
  "rgb": {
    "r": 52,
    "g": 57,
    "b": 172
  },
  "hsl": {
    "h": 237.5,
    "s": 53.571,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41965,
    "c": 0.17942,
    "h": 273.7
  },
  "luminance": 0.06635
}

Semantic roles & 50–950 ramp

primary

#3439AC

secondary

#C2BF79

accent

#D74BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3439AC

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

Preview Lab → · Contrast checker → · Palette generator →