#3847B7#3847B7

#3847B7 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.7% C 0.176 H 271.6°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#3847B7
RGB	rgb(56, 71, 183)
HSL	hsl(233, 53%, 47%)
HSV	hsv(233, 69%, 72%)
CMYK	cmyk(69.4%, 61.2%, 0%, 28.2%)
CIE-LAB	lab(35.53, 31.68, -61.04)
CIE-LCH	lch(35.53, 68.77, 297.43°)
OKLab	oklab(45.67% 0.005 -0.1761)
OKLCH	oklch(45.67% 0.176 271.6)
XYZ	xyz(12.4285, 8.7649, 45.8274)
Luminance	0.0877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3847B7 #B7A838

analogous

#3887B7 #3847B7 #6838B7

triadic

#3847B7 #B73847 #47B738

tetradic

#3847B7 #B73887 #B7A838 #38B768

square

#3847B7 #B73887 #B7A838 #38B768

split-complementary

#3847B7 #B76838 #87B738

monochromatic

#1B2359 #2A3588 #3847B7 #5E6CCE #8D97DC

Accessibility & contrast

On white

7.63

#3847B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3847B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3847B7

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3847B7	#FFFFFF	#000000	##FFFFFF
##3847B7	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BB

Deuteranopia (green-blind)

#004EB5

Tritanopia (blue-blind)

#006378

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3847b7;
/* rgb */ color: rgb(56, 71, 183);
/* oklch */ color: oklch(45.7% 0.176 271.6);

Tailwind

colors: {
  custom: {
    50: '#7f7acd',
    500: '#3847b7',
    950: '#000000',
  },
}

SCSS

$custom: #3847b7;
$custom-light: #7f7acd;
$custom-dark: #000000;

JSON

{
  "hex": "#3847b7",
  "rgb": {
    "r": 56,
    "g": 71,
    "b": 183
  },
  "hsl": {
    "h": 232.913,
    "s": 53.138,
    "l": 46.863
  },
  "oklch": {
    "l": 0.45671,
    "c": 0.17616,
    "h": 271.6
  },
  "luminance": 0.08766
}

Semantic roles & 50–950 ramp

primary

#3847B7

secondary

#C7BF84

accent

#CB4BDD

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3847B7

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

Preview Lab → · Contrast checker → · Palette generator →