#3439BC#3439BC

#3439BC is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.5% C 0.200 H 272.8°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#3439BC
RGB	rgb(52, 57, 188)
HSL	hsl(238, 57%, 47%)
HSV	hsv(238, 72%, 74%)
CMYK	cmyk(72.3%, 69.7%, 0%, 26.3%)
CIE-LAB	lab(32.45, 41.67, -69.04)
CIE-LCH	lch(32.45, 80.65, 301.11°)
OKLab	oklab(43.5% 0.0097 -0.1997)
OKLCH	oklch(43.5% 0.2 272.8)
XYZ	xyz(11.9534, 7.2860, 48.3436)
Luminance	0.0729 (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

#3439BC #BCB734

analogous

#347DBC #3439BC #7334BC

triadic

#3439BC #BC3439 #39BC34

tetradic

#3439BC #BC347D #BCB734 #34BC73

square

#3439BC #BC347D #BCB734 #34BC73

split-complementary

#3439BC #BC7334 #7DBC34

monochromatic

#191C5C #272A8C #3439BC #5B60D2 #8B8EDF

Accessibility & contrast

On white

8.55

#3439BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3439BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3439BC

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3439BC	#FFFFFF	#000000	##FFFFFF
##3439BC	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C0

Deuteranopia (green-blind)

#0046BA

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3439bc;
/* rgb */ color: rgb(52, 57, 188);
/* oklch */ color: oklch(43.5% 0.200 272.8);

Tailwind

colors: {
  custom: {
    50: '#8070d1',
    500: '#3439bc',
    950: '#000000',
  },
}

SCSS

$custom: #3439bc;
$custom-light: #8070d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3439bc",
  "rgb": {
    "r": 52,
    "g": 57,
    "b": 188
  },
  "hsl": {
    "h": 237.794,
    "s": 56.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.43498,
    "c": 0.19992,
    "h": 272.8
  },
  "luminance": 0.07287
}

Semantic roles & 50–950 ramp

primary

#3439BC

secondary

#C9C783

accent

#DA48E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3439BC

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

Preview Lab → · Contrast checker → · Palette generator →