#3F39BF#3F39BF

#3F39BF is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.5% C 0.201 H 276.4°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#3F39BF
RGB	rgb(63, 57, 191)
HSL	hsl(243, 54%, 49%)
HSV	hsv(243, 70%, 75%)
CMYK	cmyk(67%, 70.2%, 0%, 25.1%)
CIE-LAB	lab(33.44, 43.93, -69.15)
CIE-LCH	lch(33.44, 81.92, 302.43°)
OKLab	oklab(44.48% 0.0224 -0.1997)
OKLCH	oklch(44.48% 0.201 276.4)
XYZ	xyz(12.9139, 7.7435, 50.0942)
Luminance	0.0775 (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

#3F39BF #B9BF39

analogous

#3976BF #3F39BF #8239BF

triadic

#3F39BF #BF3F39 #39BF3F

tetradic

#3F39BF #BF3976 #B9BF39 #39BF82

square

#3F39BF #BF3976 #B9BF39 #39BF82

split-complementary

#3F39BF #BF8239 #76BF39

monochromatic

#201D61 #2F2B90 #3F39BF #6964D1 #9793DF

Accessibility & contrast

On white

8.24

#3F39BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3F39BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F39BF

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F39BF	#FFFFFF	#000000	##FFFFFF
##3F39BF	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C3

Deuteranopia (green-blind)

#0049BD

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f39bf;
/* rgb */ color: rgb(63, 57, 191);
/* oklch */ color: oklch(44.5% 0.201 276.4);

Tailwind

colors: {
  custom: {
    50: '#8571d3',
    500: '#3f39bf',
    950: '#000000',
  },
}

SCSS

$custom: #3f39bf;
$custom-light: #8571d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f39bf",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 191
  },
  "hsl": {
    "h": 242.687,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.44484,
    "c": 0.20097,
    "h": 276.4
  },
  "luminance": 0.07745
}

Semantic roles & 50–950 ramp

primary

#3F39BF

secondary

#C7CA8A

accent

#DD4AD7

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F39BF

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

Preview Lab → · Contrast checker → · Palette generator →