#3F3FA2#3F3FA2

#3F3FA2 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.9% C 0.156 H 277.6°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#3F3FA2
RGB	rgb(63, 63, 162)
HSL	hsl(240, 44%, 44%)
HSV	hsv(240, 61%, 64%)
CMYK	cmyk(61.1%, 61.1%, 0%, 36.5%)
CIE-LAB	lab(32.30, 30.54, -53.76)
CIE-LCH	lch(32.30, 61.83, 299.61°)
OKLab	oklab(42.88% 0.0205 -0.1546)
OKLCH	oklch(42.88% 0.156 277.6)
XYZ	xyz(10.3469, 7.2196, 35.0237)
Luminance	0.0722 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.23

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3FA2 #A2A23F

analogous

#3F71A2 #3F3FA2 #713FA2

triadic

#3F3FA2 #A23F3F #3FA23F

tetradic

#3F3FA2 #A23F71 #A2A23F #3FA271

square

#3F3FA2 #A23F71 #A2A23F #3FA271

split-complementary

#3F3FA2 #A2713F #71A23F

monochromatic

#1D1D4A #2E2E76 #3F3FA2 #5E5EC0 #8A8AD1

Accessibility & contrast

On white

8.59

#3F3FA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3F3FA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3FA2

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3FA2	#FFFFFF	#000000	##FFFFFF
##3F3FA2	1.00	8.59	2.44	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A5

Deuteranopia (green-blind)

#0048A0

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f3fa2;
/* rgb */ color: rgb(63, 63, 162);
/* oklch */ color: oklch(42.9% 0.156 277.6);

Tailwind

colors: {
  custom: {
    50: '#7f74be',
    500: '#3f3fa2',
    950: '#000000',
  },
}

SCSS

$custom: #3f3fa2;
$custom-light: #7f74be;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3fa2",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 162
  },
  "hsl": {
    "h": 240,
    "s": 44,
    "l": 44.118
  },
  "oklch": {
    "l": 0.4288,
    "c": 0.15593,
    "h": 277.6
  },
  "luminance": 0.0722
}

Semantic roles & 50–950 ramp

primary

#3F3FA2

secondary

#BCBC81

accent

#D454D4

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3F3FA2

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

Preview Lab → · Contrast checker → · Palette generator →