#3F36CB#3F36CB

#3F36CB is a mid, highly saturated blue. Relative luminance 0.080; OKLCH L 45.2% C 0.219 H 275.8°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#3F36CB
RGB	rgb(63, 54, 203)
HSL	hsl(244, 59%, 50%)
HSV	hsv(244, 73%, 80%)
CMYK	cmyk(69%, 73.4%, 0%, 20.4%)
CIE-LAB	lab(33.99, 49.47, -75.26)
CIE-LCH	lch(33.99, 90.07, 303.32°)
OKLab	oklab(45.23% 0.0221 -0.2175)
OKLCH	oklch(45.23% 0.219 275.8)
XYZ	xyz(14.1450, 8.0056, 57.2881)
Luminance	0.0801 (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

#3F36CB #C2CB36

analogous

#3678CB #3F36CB #8936CB

triadic

#3F36CB #CB3F36 #36CB3F

tetradic

#3F36CB #CB3678 #C2CB36 #36CB89

square

#3F36CB #CB3678 #C2CB36 #36CB89

split-complementary

#3F36CB #CB8936 #78CB36

monochromatic

#201C6B #2F289C #3F36CB #6D67D8 #9C97E4

Accessibility & contrast

On white

8.07

#3F36CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3F36CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F36CB

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F36CB	#FFFFFF	#000000	##FFFFFF
##3F36CB	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056CF

Deuteranopia (green-blind)

#0049C8

Tritanopia (blue-blind)

#00617E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f36cb;
/* rgb */ color: rgb(63, 54, 203);
/* oklch */ color: oklch(45.2% 0.219 275.8);

Tailwind

colors: {
  custom: {
    50: '#876fdc',
    500: '#3f36cb',
    950: '#000000',
  },
}

SCSS

$custom: #3f36cb;
$custom-light: #876fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f36cb",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 203
  },
  "hsl": {
    "h": 243.624,
    "s": 58.893,
    "l": 50.392
  },
  "oklch": {
    "l": 0.45226,
    "c": 0.21867,
    "h": 275.8
  },
  "luminance": 0.08007
}

Semantic roles & 50–950 ramp

primary

#3F36CB

secondary

#CCD08D

accent

#E246D9

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3F36CB

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

Preview Lab → · Contrast checker → · Palette generator →