#3F36BC#3F36BC

#3F36BC is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.7% C 0.200 H 277.1°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#3F36BC
RGB	rgb(63, 54, 188)
HSL	hsl(244, 55%, 47%)
HSV	hsv(244, 71%, 74%)
CMYK	cmyk(66.5%, 71.3%, 0%, 26.3%)
CIE-LAB	lab(32.54, 44.68, -68.88)
CIE-LCH	lch(32.54, 82.10, 302.97°)
OKLab	oklab(43.75% 0.0249 -0.1989)
OKLCH	oklch(43.75% 0.2 277.1)
XYZ	xyz(12.4432, 7.3249, 48.3253)
Luminance	0.0733 (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

#3F36BC #B3BC36

analogous

#3670BC #3F36BC #8236BC

triadic

#3F36BC #BC3F36 #36BC3F

tetradic

#3F36BC #BC3670 #B3BC36 #36BC82

square

#3F36BC #BC3670 #B3BC36 #36BC82

split-complementary

#3F36BC #BC8236 #70BC36

monochromatic

#1F1B5D #2F288C #3F36BC #665ED1 #938EDF

Accessibility & contrast

On white

8.52

#3F36BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3F36BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F36BC

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F36BC	#FFFFFF	#000000	##FFFFFF
##3F36BC	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C0

Deuteranopia (green-blind)

#0047BA

Tritanopia (blue-blind)

#005B75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f36bc;
/* rgb */ color: rgb(63, 54, 188);
/* oklch */ color: oklch(43.7% 0.200 277.1);

Tailwind

colors: {
  custom: {
    50: '#846fd1',
    500: '#3f36bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f36bc;
$custom-light: #846fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f36bc",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 188
  },
  "hsl": {
    "h": 244.03,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43749,
    "c": 0.20046,
    "h": 277.1
  },
  "luminance": 0.07326
}

Semantic roles & 50–950 ramp

primary

#3F36BC

secondary

#C4C985

accent

#DF49D5

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3F36BC

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

Preview Lab → · Contrast checker → · Palette generator →