#3839BC#3839BC

#3839BC is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.7% C 0.199 H 274.1°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#3839BC
RGB	rgb(56, 57, 188)
HSL	hsl(240, 54%, 48%)
HSV	hsv(240, 70%, 74%)
CMYK	cmyk(70.2%, 69.7%, 0%, 26.3%)
CIE-LAB	lab(32.69, 42.11, -68.63)
CIE-LCH	lch(32.69, 80.52, 301.53°)
OKLab	oklab(43.74% 0.0143 -0.1984)
OKLCH	oklch(43.74% 0.199 274.1)
XYZ	xyz(12.1681, 7.3967, 48.3536)
Luminance	0.0740 (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

#3839BC #BCBB38

analogous

#387BBC #3839BC #7938BC

triadic

#3839BC #BC3839 #39BC38

tetradic

#3839BC #BC387B #BCBB38 #38BC79

square

#3839BC #BC387B #BCBB38 #38BC79

split-complementary

#3839BC #BC7938 #7BBC38

monochromatic

#1C1C5E #2A2B8D #3839BC #6162D0 #9091DE

Accessibility & contrast

On white

8.47

#3839BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3839BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3839BC

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3839BC	#FFFFFF	#000000	##FFFFFF
##3839BC	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C0

Deuteranopia (green-blind)

#0047BA

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3839bc;
/* rgb */ color: rgb(56, 57, 188);
/* oklch */ color: oklch(43.7% 0.199 274.1);

Tailwind

colors: {
  custom: {
    50: '#8170d1',
    500: '#3839bc',
    950: '#000000',
  },
}

SCSS

$custom: #3839bc;
$custom-light: #8170d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3839bc",
  "rgb": {
    "r": 56,
    "g": 57,
    "b": 188
  },
  "hsl": {
    "h": 239.545,
    "s": 54.098,
    "l": 47.843
  },
  "oklch": {
    "l": 0.43738,
    "c": 0.19891,
    "h": 274.1
  },
  "luminance": 0.07398
}

Semantic roles & 50–950 ramp

primary

#3839BC

secondary

#C9C887

accent

#DC4ADD

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3839BC

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

Preview Lab → · Contrast checker → · Palette generator →