#3F4CC1#3F4CC1

#3F4CC1 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.8% C 0.182 H 272.6°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#3F4CC1
RGB	rgb(63, 76, 193)
HSL	hsl(234, 51%, 50%)
HSV	hsv(234, 67%, 76%)
CMYK	cmyk(67.4%, 60.6%, 0%, 24.3%)
CIE-LAB	lab(37.98, 33.01, -62.90)
CIE-LCH	lch(37.98, 71.04, 297.69°)
OKLab	oklab(47.84% 0.0083 -0.1813)
OKLCH	oklch(47.84% 0.182 272.6)
XYZ	xyz(14.2568, 10.0746, 51.6350)
Luminance	0.1008 (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

#3F4CC1 #C1B43F

analogous

#3F8DC1 #3F4CC1 #733FC1

triadic

#3F4CC1 #C13F4C #4CC13F

tetradic

#3F4CC1 #C13F8D #C1B43F #3FC173

square

#3F4CC1 #C13F8D #C1B43F #3FC173

split-complementary

#3F4CC1 #C1733F #8DC13F

monochromatic

#212765 #303A93 #3F4CC1 #6D77D0 #9CA2DF

Accessibility & contrast

On white

6.96

#3F4CC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#3F4CC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4CC1

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4CC1	#FFFFFF	#000000	##FFFFFF
##3F4CC1	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC5

Deuteranopia (green-blind)

#0054BF

Tritanopia (blue-blind)

#00697F

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3f4cc1;
/* rgb */ color: rgb(63, 76, 193);
/* oklch */ color: oklch(47.8% 0.182 272.6);

Tailwind

colors: {
  custom: {
    50: '#847ed5',
    500: '#3f4cc1',
    950: '#000000',
  },
}

SCSS

$custom: #3f4cc1;
$custom-light: #847ed5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4cc1",
  "rgb": {
    "r": 63,
    "g": 76,
    "b": 193
  },
  "hsl": {
    "h": 234,
    "s": 51.181,
    "l": 50.196
  },
  "oklch": {
    "l": 0.4784,
    "c": 0.18152,
    "h": 272.6
  },
  "luminance": 0.10076
}

Semantic roles & 50–950 ramp

primary

#3F4CC1

secondary

#CBC591

accent

#CD4DDB

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F4CC1

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

Preview Lab → · Contrast checker → · Palette generator →