#3839B2#3839B2

#3839B2 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.8% C 0.186 H 274.8°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#3839B2
RGB	rgb(56, 57, 178)
HSL	hsl(240, 52%, 46%)
HSV	hsv(240, 69%, 70%)
CMYK	cmyk(68.5%, 68%, 0%, 30.2%)
CIE-LAB	lab(31.76, 38.73, -64.24)
CIE-LCH	lch(31.76, 75.01, 301.08°)
OKLab	oklab(42.78% 0.0156 -0.1855)
OKLCH	oklch(42.78% 0.186 274.8)
XYZ	xyz(11.1272, 6.9803, 42.8718)
Luminance	0.0698 (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

#3839B2 #B2B138

analogous

#3876B2 #3839B2 #7438B2

triadic

#3839B2 #B23839 #39B238

tetradic

#3839B2 #B23876 #B2B138 #38B274

square

#3839B2 #B23876 #B2B138 #38B274

split-complementary

#3839B2 #B27438 #76B238

monochromatic

#1B1B55 #292A83 #3839B2 #5C5DCC #8A8BDA

Accessibility & contrast

On white

8.76

#3839B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3839B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3839B2

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3839B2	#FFFFFF	#000000	##FFFFFF
##3839B2	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B6

Deuteranopia (green-blind)

#0045B0

Tritanopia (blue-blind)

#005971

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3839b2;
/* rgb */ color: rgb(56, 57, 178);
/* oklch */ color: oklch(42.8% 0.186 274.8);

Tailwind

colors: {
  custom: {
    50: '#7f70ca',
    500: '#3839b2',
    950: '#000000',
  },
}

SCSS

$custom: #3839b2;
$custom-light: #7f70ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3839b2",
  "rgb": {
    "r": 56,
    "g": 57,
    "b": 178
  },
  "hsl": {
    "h": 239.508,
    "s": 52.137,
    "l": 45.882
  },
  "oklch": {
    "l": 0.42783,
    "c": 0.18619,
    "h": 274.8
  },
  "luminance": 0.06981
}

Semantic roles & 50–950 ramp

primary

#3839B2

secondary

#C5C481

accent

#DA4CDC

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3839B2

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

Preview Lab → · Contrast checker → · Palette generator →