#3840C4#3840C4

#3840C4 is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 45.6% C 0.201 H 272.6°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3840C4
RGB	rgb(56, 64, 196)
HSL	hsl(237, 56%, 49%)
HSV	hsv(237, 71%, 77%)
CMYK	cmyk(71.4%, 67.3%, 0%, 23.1%)
CIE-LAB	lab(34.99, 40.62, -69.56)
CIE-LCH	lch(34.99, 80.55, 300.28°)
OKLab	oklab(45.62% 0.0091 -0.2011)
OKLCH	oklch(45.62% 0.201 272.6)
XYZ	xyz(13.4247, 8.4917, 53.1454)
Luminance	0.0849 (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

#3840C4 #C4BC38

analogous

#3886C4 #3840C4 #7638C4

triadic

#3840C4 #C43840 #40C438

tetradic

#3840C4 #C43886 #C4BC38 #38C476

square

#3840C4 #C43886 #C4BC38 #38C476

split-complementary

#3840C4 #C47638 #86C438

monochromatic

#1D2165 #2A3094 #3840C4 #666CD3 #969AE1

Accessibility & contrast

On white

7.78

#3840C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3840C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3840C4

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3840C4	#FFFFFF	#000000	##FFFFFF
##3840C4	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C8

Deuteranopia (green-blind)

#004CC2

Tritanopia (blue-blind)

#00637D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3840c4;
/* rgb */ color: rgb(56, 64, 196);
/* oklch */ color: oklch(45.6% 0.201 272.6);

Tailwind

colors: {
  custom: {
    50: '#8275d7',
    500: '#3840c4',
    950: '#000000',
  },
}

SCSS

$custom: #3840c4;
$custom-light: #8275d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3840c4",
  "rgb": {
    "r": 56,
    "g": 64,
    "b": 196
  },
  "hsl": {
    "h": 236.571,
    "s": 55.556,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45621,
    "c": 0.20129,
    "h": 272.6
  },
  "luminance": 0.08493
}

Semantic roles & 50–950 ramp

primary

#3840C4

secondary

#CCC98C

accent

#D649DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3840C4

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

Preview Lab → · Contrast checker → · Palette generator →