#3F49CC#3F49CC

#3F49CC is a mid, vivid blue. Relative luminance 0.102; OKLCH L 48.3% C 0.199 H 272.9°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F49CC
RGB	rgb(63, 73, 204)
HSL	hsl(236, 58%, 52%)
HSV	hsv(236, 69%, 80%)
CMYK	cmyk(69.1%, 64.2%, 0%, 20%)
CIE-LAB	lab(38.16, 38.69, -68.99)
CIE-LCH	lch(38.16, 79.10, 299.28°)
OKLab	oklab(48.26% 0.0101 -0.1992)
OKLCH	oklch(48.26% 0.199 272.9)
XYZ	xyz(15.3279, 10.1800, 58.2722)
Luminance	0.1018 (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

#3F49CC #CCC23F

analogous

#3F8FCC #3F49CC #7C3FCC

triadic

#3F49CC #CC3F49 #49CC3F

tetradic

#3F49CC #CC3F8F #CCC23F #3FCC7C

square

#3F49CC #CC3F8F #CCC23F #3FCC7C

split-complementary

#3F49CC #CC7C3F #8FCC3F

monochromatic

#1E2472 #2B34A3 #3F49CC #6F77D9 #A0A5E6

Accessibility & contrast

On white

6.92

#3F49CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3F49CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F49CC

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F49CC	#FFFFFF	#000000	##FFFFFF
##3F49CC	1.00	6.92	3.04	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D0

Deuteranopia (green-blind)

#0053C9

Tritanopia (blue-blind)

#006B84

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f49cc;
/* rgb */ color: rgb(63, 73, 204);
/* oklch */ color: oklch(48.3% 0.199 272.9);

Tailwind

colors: {
  custom: {
    50: '#867cdd',
    500: '#3f49cc',
    950: '#000000',
  },
}

SCSS

$custom: #3f49cc;
$custom-light: #867cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f49cc",
  "rgb": {
    "r": 63,
    "g": 73,
    "b": 204
  },
  "hsl": {
    "h": 235.745,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.48259,
    "c": 0.19949,
    "h": 272.9
  },
  "luminance": 0.10181
}

Semantic roles & 50–950 ramp

primary

#3F49CC

secondary

#D2CE95

accent

#D647E1

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F49CC

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

Preview Lab → · Contrast checker → · Palette generator →