#3F4BCA#3F4BCA

#3F4BCA is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.4% C 0.195 H 272.6°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F4BCA
RGB	rgb(63, 75, 202)
HSL	hsl(235, 57%, 52%)
HSV	hsv(235, 69%, 79%)
CMYK	cmyk(68.8%, 62.9%, 0%, 20.8%)
CIE-LAB	lab(38.47, 36.77, -67.34)
CIE-LCH	lch(38.47, 76.72, 298.63°)
OKLab	oklab(48.43% 0.0088 -0.1944)
OKLCH	oklch(48.43% 0.195 272.6)
XYZ	xyz(15.2231, 10.3517, 57.0615)
Luminance	0.1035 (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

#3F4BCA #CABE3F

analogous

#3F91CA #3F4BCA #793FCA

triadic

#3F4BCA #CA3F4B #4BCA3F

tetradic

#3F4BCA #CA3F91 #CABE3F #3FCA79

square

#3F4BCA #CA3F91 #CABE3F #3FCA79

split-complementary

#3F4BCA #CA793F #91CA3F

monochromatic

#1F2670 #2C36A0 #3F4BCA #6F78D7 #9FA5E4

Accessibility & contrast

On white

6.84

#3F4BCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3F4BCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4BCA

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4BCA	#FFFFFF	#000000	##FFFFFF
##3F4BCA	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)

#0061CE

Deuteranopia (green-blind)

#0054C8

Tritanopia (blue-blind)

#006C83

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f4bca;
/* rgb */ color: rgb(63, 75, 202);
/* oklch */ color: oklch(48.4% 0.195 272.6);

Tailwind

colors: {
  custom: {
    50: '#867ddb',
    500: '#3f4bca',
    950: '#000000',
  },
}

SCSS

$custom: #3f4bca;
$custom-light: #867ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4bca",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 202
  },
  "hsl": {
    "h": 234.82,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.48429,
    "c": 0.19456,
    "h": 272.6
  },
  "luminance": 0.10353
}

Semantic roles & 50–950 ramp

primary

#3F4BCA

secondary

#D1CC94

accent

#D348E0

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3F4BCA

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

Preview Lab → · Contrast checker → · Palette generator →