#3F36D1#3F36D1

#3F36D1 is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.8% C 0.226 H 275.3°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F36D1
RGB	rgb(63, 54, 209)
HSL	hsl(243, 63%, 52%)
HSV	hsv(243, 74%, 82%)
CMYK	cmyk(69.9%, 74.2%, 0%, 18%)
CIE-LAB	lab(34.59, 51.36, -77.76)
CIE-LCH	lch(34.59, 93.19, 303.45°)
OKLab	oklab(45.83% 0.0209 -0.2248)
OKLCH	oklch(45.83% 0.226 275.3)
XYZ	xyz(14.8739, 8.2971, 61.1269)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.64

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F36D1 #C8D136

analogous

#367BD1 #3F36D1 #8D36D1

triadic

#3F36D1 #D13F36 #36D13F

tetradic

#3F36D1 #D1367B #C8D136 #36D18D

square

#3F36D1 #D1367B #C8D136 #36D18D

split-complementary

#3F36D1 #D18D36 #7BD136

monochromatic

#1F1A72 #2D26A4 #3F36D1 #6F68DC #9E9AE8

Accessibility & contrast

On white

7.90

#3F36D1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3F36D1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F36D1

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F36D1	#FFFFFF	#000000	##FFFFFF
##3F36D1	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D5

Deuteranopia (green-blind)

#004ACE

Tritanopia (blue-blind)

#006381

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f36d1;
/* rgb */ color: rgb(63, 54, 209);
/* oklch */ color: oklch(45.8% 0.226 275.3);

Tailwind

colors: {
  custom: {
    50: '#8970e0',
    500: '#3f36d1',
    950: '#000000',
  },
}

SCSS

$custom: #3f36d1;
$custom-light: #8970e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f36d1",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 209
  },
  "hsl": {
    "h": 243.484,
    "s": 62.753,
    "l": 51.569
  },
  "oklch": {
    "l": 0.4583,
    "c": 0.22579,
    "h": 275.3
  },
  "luminance": 0.08299
}

Semantic roles & 50–950 ramp

primary

#3F36D1

secondary

#D0D38F

accent

#E642DC

background

#F9F6FD

surface

#F2ECFB

border

#CCC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3F36D1

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

Preview Lab → · Contrast checker → · Palette generator →