#3439B4#3439B4

#3439B4 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.7% C 0.190 H 273.2°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#3439B4
RGB	rgb(52, 57, 180)
HSL	hsl(238, 55%, 45%)
HSV	hsv(238, 71%, 71%)
CMYK	cmyk(71.1%, 68.3%, 0%, 29.4%)
CIE-LAB	lab(31.69, 38.93, -65.55)
CIE-LCH	lch(31.69, 76.24, 300.71°)
OKLab	oklab(42.72% 0.0107 -0.1895)
OKLCH	oklch(42.72% 0.19 273.2)
XYZ	xyz(11.1148, 6.9505, 43.9270)
Luminance	0.0695 (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

#3439B4 #B4AF34

analogous

#3479B4 #3439B4 #6F34B4

triadic

#3439B4 #B43439 #39B434

tetradic

#3439B4 #B43479 #B4AF34 #34B46F

square

#3439B4 #B43479 #B4AF34 #34B46F

split-complementary

#3439B4 #B46F34 #79B434

monochromatic

#191B55 #262A85 #3439B4 #575BCE #868ADC

Accessibility & contrast

On white

8.79

#3439B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3439B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3439B4

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3439B4	#FFFFFF	#000000	##FFFFFF
##3439B4	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B8

Deuteranopia (green-blind)

#0045B2

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3439b4;
/* rgb */ color: rgb(52, 57, 180);
/* oklch */ color: oklch(42.7% 0.190 273.2);

Tailwind

colors: {
  custom: {
    50: '#7e70cc',
    500: '#3439b4',
    950: '#000000',
  },
}

SCSS

$custom: #3439b4;
$custom-light: #7e70cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3439b4",
  "rgb": {
    "r": 52,
    "g": 57,
    "b": 180
  },
  "hsl": {
    "h": 237.656,
    "s": 55.172,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42723,
    "c": 0.18978,
    "h": 273.2
  },
  "luminance": 0.06952
}

Semantic roles & 50–950 ramp

primary

#3439B4

secondary

#C6C37E

accent

#D949DF

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3439B4

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

Preview Lab → · Contrast checker → · Palette generator →