#3F4DC4#3F4DC4

#3F4DC4 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 48.3% C 0.184 H 272.3°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F4DC4
RGB	rgb(63, 77, 196)
HSL	hsl(234, 53%, 51%)
HSV	hsv(234, 68%, 77%)
CMYK	cmyk(67.9%, 60.7%, 0%, 23.1%)
CIE-LAB	lab(38.46, 33.42, -63.86)
CIE-LCH	lch(38.46, 72.08, 297.63°)
OKLab	oklab(48.27% 0.0075 -0.1841)
OKLCH	oklch(48.27% 0.184 272.3)
XYZ	xyz(14.6642, 10.3487, 53.4385)
Luminance	0.1035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4DC4 #C4B63F

analogous

#3F8FC4 #3F4DC4 #733FC4

triadic

#3F4DC4 #C43F4D #4DC43F

tetradic

#3F4DC4 #C43F8F #C4B63F #3FC473

square

#3F4DC4 #C43F8F #C4B63F #3FC473

split-complementary

#3F4DC4 #C4733F #8FC43F

monochromatic

#202868 #2E3A97 #3F4DC4 #6E78D2 #9DA4E1

Accessibility & contrast

On white

6.84

#3F4DC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3F4DC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4DC4

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4DC4	#FFFFFF	#000000	##FFFFFF
##3F4DC4	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C8

Deuteranopia (green-blind)

#0055C2

Tritanopia (blue-blind)

#006B81

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f4dc4;
/* rgb */ color: rgb(63, 77, 196);
/* oklch */ color: oklch(48.3% 0.184 272.3);

Tailwind

colors: {
  custom: {
    50: '#847ed7',
    500: '#3f4dc4',
    950: '#000000',
  },
}

SCSS

$custom: #3f4dc4;
$custom-light: #847ed7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4dc4",
  "rgb": {
    "r": 63,
    "g": 77,
    "b": 196
  },
  "hsl": {
    "h": 233.684,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48273,
    "c": 0.18429,
    "h": 272.3
  },
  "luminance": 0.1035
}

Semantic roles & 50–950 ramp

primary

#3F4DC4

secondary

#CDC792

accent

#CD4BDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F4DC4

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

Preview Lab → · Contrast checker → · Palette generator →