#3F36BF#3F36BF

#3F36BF is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.0% C 0.204 H 276.9°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#3F36BF
RGB	rgb(63, 54, 191)
HSL	hsl(244, 56%, 48%)
HSV	hsv(244, 72%, 75%)
CMYK	cmyk(67%, 71.7%, 0%, 25.1%)
CIE-LAB	lab(32.82, 45.65, -70.17)
CIE-LCH	lch(32.82, 83.71, 303.04°)
OKLab	oklab(44.04% 0.0244 -0.2027)
OKLCH	oklch(44.04% 0.204 276.9)
XYZ	xyz(12.7700, 7.4556, 50.0462)
Luminance	0.0746 (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

#3F36BF #B6BF36

analogous

#3671BF #3F36BF #8436BF

triadic

#3F36BF #BF3F36 #36BF3F

tetradic

#3F36BF #BF3671 #B6BF36 #36BF84

square

#3F36BF #BF3671 #B6BF36 #36BF84

split-complementary

#3F36BF #BF8436 #71BF36

monochromatic

#201B60 #2F298F #3F36BF #6860D2 #9590E0

Accessibility & contrast

On white

8.43

#3F36BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3F36BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F36BF

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F36BF	#FFFFFF	#000000	##FFFFFF
##3F36BF	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C3

Deuteranopia (green-blind)

#0047BC

Tritanopia (blue-blind)

#005C77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f36bf;
/* rgb */ color: rgb(63, 54, 191);
/* oklch */ color: oklch(44.0% 0.204 276.9);

Tailwind

colors: {
  custom: {
    50: '#856fd4',
    500: '#3f36bf',
    950: '#000000',
  },
}

SCSS

$custom: #3f36bf;
$custom-light: #856fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f36bf",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 191
  },
  "hsl": {
    "h": 243.942,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.4404,
    "c": 0.20415,
    "h": 276.9
  },
  "luminance": 0.07457
}

Semantic roles & 50–950 ramp

primary

#3F36BF

secondary

#C6CA87

accent

#DF49D5

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3F36BF

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

Preview Lab → · Contrast checker → · Palette generator →