#3F3BBE#3F3BBE

#3F3BBE is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.7% C 0.198 H 276.2°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#3F3BBE
RGB	rgb(63, 59, 190)
HSL	hsl(242, 53%, 49%)
HSV	hsv(242, 69%, 75%)
CMYK	cmyk(66.8%, 68.9%, 0%, 25.5%)
CIE-LAB	lab(33.78, 42.43, -68.01)
CIE-LCH	lch(33.78, 80.17, 301.96°)
OKLab	oklab(44.7% 0.0212 -0.1964)
OKLCH	oklch(44.7% 0.198 276.2)
XYZ	xyz(12.9051, 7.9013, 49.5502)
Luminance	0.0790 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.90

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3BBE #BABE3B

analogous

#3B79BE #3F3BBE #813BBE

triadic

#3F3BBE #BE3F3B #3BBE3F

tetradic

#3F3BBE #BE3B79 #BABE3B #3BBE81

square

#3F3BBE #BE3B79 #BABE3B #3BBE81

split-complementary

#3F3BBE #BE813B #79BE3B

monochromatic

#201E61 #302C8F #3F3BBE #6A67D0 #9795DE

Accessibility & contrast

On white

8.14

#3F3BBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3F3BBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3BBE

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3BBE	#FFFFFF	#000000	##FFFFFF
##3F3BBE	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C2

Deuteranopia (green-blind)

#004ABC

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f3bbe;
/* rgb */ color: rgb(63, 59, 190);
/* oklch */ color: oklch(44.7% 0.198 276.2);

Tailwind

colors: {
  custom: {
    50: '#8472d3',
    500: '#3f3bbe',
    950: '#000000',
  },
}

SCSS

$custom: #3f3bbe;
$custom-light: #8472d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3bbe",
  "rgb": {
    "r": 63,
    "g": 59,
    "b": 190
  },
  "hsl": {
    "h": 241.832,
    "s": 52.61,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44696,
    "c": 0.19754,
    "h": 276.2
  },
  "luminance": 0.07902
}

Semantic roles & 50–950 ramp

primary

#3F3BBE

secondary

#C8CA8B

accent

#DC4CD8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F3BBE

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

Preview Lab → · Contrast checker → · Palette generator →