#3843BB#3843BB

#3843BB is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.3% C 0.186 H 272.4°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#3843BB
RGB	rgb(56, 67, 187)
HSL	hsl(235, 54%, 48%)
HSV	hsv(235, 70%, 73%)
CMYK	cmyk(70.1%, 64.2%, 0%, 26.7%)
CIE-LAB	lab(34.89, 35.64, -64.45)
CIE-LCH	lch(34.89, 73.65, 298.94°)
OKLab	oklab(45.3% 0.0078 -0.1861)
OKLCH	oklch(45.3% 0.186 272.4)
XYZ	xyz(12.6047, 8.4417, 47.9692)
Luminance	0.0844 (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

#3843BB #BBB038

analogous

#3884BB #3843BB #6F38BB

triadic

#3843BB #BB3843 #43BB38

tetradic

#3843BB #BB3884 #BBB038 #38BB6F

square

#3843BB #BB3884 #BBB038 #38BB6F

split-complementary

#3843BB #BB6F38 #84BB38

monochromatic

#1C215D #2A328C #3843BB #616AD0 #9096DE

Accessibility & contrast

On white

7.81

#3843BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3843BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3843BB

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3843BB	#FFFFFF	#000000	##FFFFFF
##3843BB	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BF

Deuteranopia (green-blind)

#004CB9

Tritanopia (blue-blind)

#006279

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3843bb;
/* rgb */ color: rgb(56, 67, 187);
/* oklch */ color: oklch(45.3% 0.186 272.4);

Tailwind

colors: {
  custom: {
    50: '#8077d0',
    500: '#3843bb',
    950: '#000000',
  },
}

SCSS

$custom: #3843bb;
$custom-light: #8077d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3843bb",
  "rgb": {
    "r": 56,
    "g": 67,
    "b": 187
  },
  "hsl": {
    "h": 234.962,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45303,
    "c": 0.18627,
    "h": 272.4
  },
  "luminance": 0.08443
}

Semantic roles & 50–950 ramp

primary

#3843BB

secondary

#C8C386

accent

#D14BDD

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3843BB

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

Preview Lab → · Contrast checker → · Palette generator →