#3439B7#3439B7

#3439B7 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.194 H 273.1°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#3439B7
RGB	rgb(52, 57, 183)
HSL	hsl(238, 56%, 46%)
HSV	hsv(238, 72%, 72%)
CMYK	cmyk(71.6%, 68.9%, 0%, 28.2%)
CIE-LAB	lab(31.98, 39.96, -66.87)
CIE-LCH	lch(31.98, 77.90, 300.86°)
OKLab	oklab(43.01% 0.0103 -0.1933)
OKLCH	oklch(43.01% 0.194 273.1)
XYZ	xyz(11.4237, 7.0741, 45.5540)
Luminance	0.0707 (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

#3439B7 #B7B234

analogous

#347AB7 #3439B7 #7034B7

triadic

#3439B7 #B73439 #39B734

tetradic

#3439B7 #B7347A #B7B234 #34B770

square

#3439B7 #B7347A #B7B234 #34B770

split-complementary

#3439B7 #B77034 #7AB734

monochromatic

#191B58 #262A87 #3439B7 #595DD0 #888BDD

Accessibility & contrast

On white

8.70

#3439B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3439B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3439B7

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3439B7	#FFFFFF	#000000	##FFFFFF
##3439B7	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BB

Deuteranopia (green-blind)

#0045B5

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3439b7;
/* rgb */ color: rgb(52, 57, 183);
/* oklch */ color: oklch(43.0% 0.194 273.1);

Tailwind

colors: {
  custom: {
    50: '#7e70ce',
    500: '#3439b7',
    950: '#000000',
  },
}

SCSS

$custom: #3439b7;
$custom-light: #7e70ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3439b7",
  "rgb": {
    "r": 52,
    "g": 57,
    "b": 183
  },
  "hsl": {
    "h": 237.71,
    "s": 55.745,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43012,
    "c": 0.19361,
    "h": 273.1
  },
  "luminance": 0.07075
}

Semantic roles & 50–950 ramp

primary

#3439B7

secondary

#C7C480

accent

#D949DF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3439B7

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

Preview Lab → · Contrast checker → · Palette generator →