#3839AC#3839AC

#3839AC is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.178 H 275.2°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#3839AC
RGB	rgb(56, 57, 172)
HSL	hsl(239, 51%, 45%)
HSV	hsv(239, 67%, 67%)
CMYK	cmyk(67.4%, 66.9%, 0%, 32.5%)
CIE-LAB	lab(31.22, 36.67, -61.55)
CIE-LCH	lch(31.22, 71.65, 300.79°)
OKLab	oklab(42.22% 0.0163 -0.1777)
OKLCH	oklch(42.22% 0.178 275.2)
XYZ	xyz(10.5380, 6.7446, 39.7682)
Luminance	0.0675 (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

#3839AC #ACAB38

analogous

#3873AC #3839AC #7138AC

triadic

#3839AC #AC3839 #39AC38

tetradic

#3839AC #AC3873 #ACAB38 #38AC71

square

#3839AC #AC3873 #ACAB38 #38AC71

split-complementary

#3839AC #AC7138 #73AC38

monochromatic

#1A1A50 #292A7E #3839AC #5859C9 #8787D8

Accessibility & contrast

On white

8.94

#3839AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3839AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3839AC

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3839AC	#FFFFFF	#000000	##FFFFFF
##3839AC	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0044AA

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3839ac;
/* rgb */ color: rgb(56, 57, 172);
/* oklch */ color: oklch(42.2% 0.178 275.2);

Tailwind

colors: {
  custom: {
    50: '#7e70c6',
    500: '#3839ac',
    950: '#000000',
  },
}

SCSS

$custom: #3839ac;
$custom-light: #7e70c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3839ac",
  "rgb": {
    "r": 56,
    "g": 57,
    "b": 172
  },
  "hsl": {
    "h": 239.483,
    "s": 50.877,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42222,
    "c": 0.17841,
    "h": 275.2
  },
  "luminance": 0.06746
}

Semantic roles & 50–950 ramp

primary

#3839AC

secondary

#C2C17E

accent

#D94DDA

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3839AC

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

Preview Lab → · Contrast checker → · Palette generator →