#3839B4#3839B4

#3839B4 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.189 H 274.7°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#3839B4
RGB	rgb(56, 57, 180)
HSL	hsl(240, 53%, 46%)
HSV	hsv(240, 69%, 71%)
CMYK	cmyk(68.9%, 68.3%, 0%, 29.4%)
CIE-LAB	lab(31.95, 39.41, -65.13)
CIE-LCH	lch(31.95, 76.12, 301.18°)
OKLab	oklab(42.97% 0.0154 -0.1881)
OKLCH	oklch(42.97% 0.189 274.7)
XYZ	xyz(11.3295, 7.0612, 43.9371)
Luminance	0.0706 (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

#3839B4 #B4B338

analogous

#3877B4 #3839B4 #7538B4

triadic

#3839B4 #B43839 #39B438

tetradic

#3839B4 #B43877 #B4B338 #38B475

square

#3839B4 #B43877 #B4B338 #38B475

split-complementary

#3839B4 #B47538 #77B438

monochromatic

#1B1B57 #292A85 #3839B4 #5D5ECD #8B8CDB

Accessibility & contrast

On white

8.71

#3839B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3839B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3839B4

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3839B4	#FFFFFF	#000000	##FFFFFF
##3839B4	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	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: #3839b4;
/* rgb */ color: rgb(56, 57, 180);
/* oklch */ color: oklch(43.0% 0.189 274.7);

Tailwind

colors: {
  custom: {
    50: '#7f70cc',
    500: '#3839b4',
    950: '#000000',
  },
}

SCSS

$custom: #3839b4;
$custom-light: #7f70cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3839b4",
  "rgb": {
    "r": 56,
    "g": 57,
    "b": 180
  },
  "hsl": {
    "h": 239.516,
    "s": 52.542,
    "l": 46.275
  },
  "oklch": {
    "l": 0.42972,
    "c": 0.18877,
    "h": 274.7
  },
  "luminance": 0.07062
}

Semantic roles & 50–950 ramp

primary

#3839B4

secondary

#C5C582

accent

#DB4CDC

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3839B4

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

Preview Lab → · Contrast checker → · Palette generator →