#3F36BD#3F36BD

#3F36BD is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.8% C 0.202 H 277.0°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#3F36BD
RGB	rgb(63, 54, 189)
HSL	hsl(244, 56%, 48%)
HSV	hsv(244, 71%, 74%)
CMYK	cmyk(66.7%, 71.4%, 0%, 25.9%)
CIE-LAB	lab(32.63, 45.00, -69.31)
CIE-LCH	lch(32.63, 82.64, 303.00°)
OKLab	oklab(43.85% 0.0247 -0.2002)
OKLCH	oklch(43.85% 0.202 277)
XYZ	xyz(12.5514, 7.3681, 48.8950)
Luminance	0.0737 (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

#3F36BD #B4BD36

analogous

#3670BD #3F36BD #8236BD

triadic

#3F36BD #BD3F36 #36BD3F

tetradic

#3F36BD #BD3670 #B4BD36 #36BD82

square

#3F36BD #BD3670 #B4BD36 #36BD82

split-complementary

#3F36BD #BD8236 #70BD36

monochromatic

#1F1B5E #2F288D #3F36BD #675FD1 #948FDF

Accessibility & contrast

On white

8.49

#3F36BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3F36BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F36BD

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F36BD	#FFFFFF	#000000	##FFFFFF
##3F36BD	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C1

Deuteranopia (green-blind)

#0047BB

Tritanopia (blue-blind)

#005B76

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f36bd;
/* rgb */ color: rgb(63, 54, 189);
/* oklch */ color: oklch(43.8% 0.202 277.0);

Tailwind

colors: {
  custom: {
    50: '#856fd2',
    500: '#3f36bd',
    950: '#000000',
  },
}

SCSS

$custom: #3f36bd;
$custom-light: #856fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f36bd",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 189
  },
  "hsl": {
    "h": 244,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43846,
    "c": 0.20169,
    "h": 277
  },
  "luminance": 0.07369
}

Semantic roles & 50–950 ramp

primary

#3F36BD

secondary

#C5C985

accent

#DF49D5

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3F36BD

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

Preview Lab → · Contrast checker → · Palette generator →