#3831BD#3831BD

#3831BD is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.7% C 0.208 H 275.2°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#3831BD
RGB	rgb(56, 49, 189)
HSL	hsl(243, 59%, 47%)
HSV	hsv(243, 74%, 74%)
CMYK	cmyk(70.4%, 74.1%, 0%, 25.9%)
CIE-LAB	lab(31.14, 47.03, -71.78)
CIE-LCH	lch(31.14, 85.82, 303.23°)
OKLab	oklab(42.66% 0.0187 -0.2075)
OKLCH	oklch(42.66% 0.208 275.2)
XYZ	xyz(11.9115, 6.7104, 48.8017)
Luminance	0.0671 (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

#3831BD #B6BD31

analogous

#3170BD #3831BD #7E31BD

triadic

#3831BD #BD3831 #31BD38

tetradic

#3831BD #BD3170 #B6BD31 #31BD7E

square

#3831BD #BD3170 #B6BD31 #31BD7E

split-complementary

#3831BD #BD7E31 #70BD31

monochromatic

#1B185C #2A248C #3831BD #5E58D4 #8D88E0

Accessibility & contrast

On white

8.97

#3831BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3831BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3831BD

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3831BD	#FFFFFF	#000000	##FFFFFF
##3831BD	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FC1

Deuteranopia (green-blind)

#0043BA

Tritanopia (blue-blind)

#005974

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3831bd;
/* rgb */ color: rgb(56, 49, 189);
/* oklch */ color: oklch(42.7% 0.208 275.2);

Tailwind

colors: {
  custom: {
    50: '#826bd2',
    500: '#3831bd',
    950: '#000000',
  },
}

SCSS

$custom: #3831bd;
$custom-light: #826bd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3831bd",
  "rgb": {
    "r": 56,
    "g": 49,
    "b": 189
  },
  "hsl": {
    "h": 243,
    "s": 58.824,
    "l": 46.667
  },
  "oklch": {
    "l": 0.42657,
    "c": 0.20839,
    "h": 275.2
  },
  "luminance": 0.06712
}

Semantic roles & 50–950 ramp

primary

#3831BD

secondary

#C6CA80

accent

#E246DA

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3831BD

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

Preview Lab → · Contrast checker → · Palette generator →