#3439B3#3439B3

#3439B3 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.6% C 0.189 H 273.3°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#3439B3
RGB	rgb(52, 57, 179)
HSL	hsl(238, 55%, 45%)
HSV	hsv(238, 71%, 70%)
CMYK	cmyk(70.9%, 68.2%, 0%, 29.8%)
CIE-LAB	lab(31.60, 38.58, -65.11)
CIE-LCH	lch(31.60, 75.68, 300.65°)
OKLab	oklab(42.63% 0.0108 -0.1882)
OKLCH	oklch(42.63% 0.189 273.3)
XYZ	xyz(11.0133, 6.9099, 43.3924)
Luminance	0.0691 (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

#3439B3 #B3AE34

analogous

#3478B3 #3439B3 #6F34B3

triadic

#3439B3 #B33439 #39B334

tetradic

#3439B3 #B33478 #B3AE34 #34B36F

square

#3439B3 #B33478 #B3AE34 #34B36F

split-complementary

#3439B3 #B36F34 #78B334

monochromatic

#181B54 #262A84 #3439B3 #565BCE #8689DC

Accessibility & contrast

On white

8.82

#3439B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3439B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3439B3

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3439B3	#FFFFFF	#000000	##FFFFFF
##3439B3	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B7

Deuteranopia (green-blind)

#0044B1

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3439b3;
/* rgb */ color: rgb(52, 57, 179);
/* oklch */ color: oklch(42.6% 0.189 273.3);

Tailwind

colors: {
  custom: {
    50: '#7e70cb',
    500: '#3439b3',
    950: '#000000',
  },
}

SCSS

$custom: #3439b3;
$custom-light: #7e70cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3439b3",
  "rgb": {
    "r": 52,
    "g": 57,
    "b": 179
  },
  "hsl": {
    "h": 237.638,
    "s": 54.978,
    "l": 45.294
  },
  "oklch": {
    "l": 0.42627,
    "c": 0.1885,
    "h": 273.3
  },
  "luminance": 0.06911
}

Semantic roles & 50–950 ramp

primary

#3439B3

secondary

#C5C37D

accent

#D849DE

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3439B3

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

Preview Lab → · Contrast checker → · Palette generator →