#3439AA#3439AA

#3439AA is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.8% C 0.177 H 273.8°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#3439AA
RGB	rgb(52, 57, 170)
HSL	hsl(237, 53%, 44%)
HSV	hsv(237, 69%, 67%)
CMYK	cmyk(69.4%, 66.5%, 0%, 33.3%)
CIE-LAB	lab(30.78, 35.45, -61.09)
CIE-LCH	lch(30.78, 70.63, 300.13°)
OKLab	oklab(41.78% 0.0117 -0.1764)
OKLCH	oklch(41.78% 0.177 273.8)
XYZ	xyz(10.1326, 6.5576, 38.7542)
Luminance	0.0656 (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

#3439AA #AAA534

analogous

#3474AA #3439AA #6A34AA

triadic

#3439AA #AA3439 #39AA34

tetradic

#3439AA #AA3474 #AAA534 #34AA6A

square

#3439AA #AA3474 #AAA534 #34AA6A

split-complementary

#3439AA #AA6A34 #74AA34

monochromatic

#171A4C #26297B #3439AA #5156CA #8084D8

Accessibility & contrast

On white

9.08

#3439AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3439AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3439AA

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3439AA	#FFFFFF	#000000	##FFFFFF
##3439AA	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAE

Deuteranopia (green-blind)

#0043A8

Tritanopia (blue-blind)

#00576C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3439aa;
/* rgb */ color: rgb(52, 57, 170);
/* oklch */ color: oklch(41.8% 0.177 273.8);

Tailwind

colors: {
  custom: {
    50: '#7c70c4',
    500: '#3439aa',
    950: '#000000',
  },
}

SCSS

$custom: #3439aa;
$custom-light: #7c70c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3439aa",
  "rgb": {
    "r": 52,
    "g": 57,
    "b": 170
  },
  "hsl": {
    "h": 237.458,
    "s": 53.153,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41778,
    "c": 0.1768,
    "h": 273.8
  },
  "luminance": 0.06559
}

Semantic roles & 50–950 ramp

primary

#3439AA

secondary

#C1BE78

accent

#D64BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3439AA

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

Preview Lab → · Contrast checker → · Palette generator →