#3839CF#3839CF

#3839CF is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.6% C 0.222 H 273.0°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#3839CF
RGB	rgb(56, 57, 207)
HSL	hsl(240, 61%, 52%)
HSV	hsv(240, 73%, 81%)
CMYK	cmyk(72.9%, 72.5%, 0%, 18.8%)
CIE-LAB	lab(34.54, 48.41, -76.70)
CIE-LCH	lch(34.54, 90.70, 302.26°)
OKLab	oklab(45.62% 0.0115 -0.2219)
OKLCH	oklch(45.62% 0.222 273)
XYZ	xyz(14.3527, 8.2705, 59.8593)
Luminance	0.0827 (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

#3839CF #CFCE38

analogous

#3885CF #3839CF #8338CF

triadic

#3839CF #CF3839 #39CF38

tetradic

#3839CF #CF3885 #CFCE38 #38CF83

square

#3839CF #CF3885 #CFCE38 #38CF83

split-complementary

#3839CF #CF8338 #85CF38

monochromatic

#1B1C71 #2728A3 #3839CF #696ADB #9B9BE7

Accessibility & contrast

On white

7.91

#3839CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3839CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3839CF

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3839CF	#FFFFFF	#000000	##FFFFFF
##3839CF	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D3

Deuteranopia (green-blind)

#004ACC

Tritanopia (blue-blind)

#006481

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3839cf;
/* rgb */ color: rgb(56, 57, 207);
/* oklch */ color: oklch(45.6% 0.222 273.0);

Tailwind

colors: {
  custom: {
    50: '#8571df',
    500: '#3839cf',
    950: '#000000',
  },
}

SCSS

$custom: #3839cf;
$custom-light: #8571df;
$custom-dark: #000000;

JSON

{
  "hex": "#3839cf",
  "rgb": {
    "r": 56,
    "g": 57,
    "b": 207
  },
  "hsl": {
    "h": 239.603,
    "s": 61.134,
    "l": 51.569
  },
  "oklch": {
    "l": 0.45616,
    "c": 0.22222,
    "h": 273
  },
  "luminance": 0.08272
}

Semantic roles & 50–950 ramp

primary

#3839CF

secondary

#D3D290

accent

#E344E4

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3839CF

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

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