#3F49D0#3F49D0

#3F49D0 is a mid, highly saturated blue. Relative luminance 0.104; OKLCH L 48.6% C 0.205 H 272.7°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#3F49D0
RGB	rgb(63, 73, 208)
HSL	hsl(236, 61%, 53%)
HSV	hsv(236, 70%, 82%)
CMYK	cmyk(69.7%, 64.9%, 0%, 18.4%)
CIE-LAB	lab(38.51, 40.06, -70.75)
CIE-LCH	lch(38.51, 81.30, 299.52°)
OKLab	oklab(48.62% 0.0098 -0.2044)
OKLCH	oklch(48.62% 0.205 272.7)
XYZ	xyz(15.8138, 10.3744, 60.8313)
Luminance	0.1038 (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

#3F49D0 #D0C63F

analogous

#3F91D0 #3F49D0 #7D3FD0

triadic

#3F49D0 #D03F49 #49D03F

tetradic

#3F49D0 #D03F91 #D0C63F #3FD07D

square

#3F49D0 #D03F91 #D0C63F #3FD07D

split-complementary

#3F49D0 #D07D3F #91D03F

monochromatic

#1D2377 #2932A9 #3F49D0 #7078DC #A1A6E8

Accessibility & contrast

On white

6.83

#3F49D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3F49D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F49D0

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F49D0	#FFFFFF	#000000	##FFFFFF
##3F49D0	1.00	6.83	3.08	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061D4

Deuteranopia (green-blind)

#0054CD

Tritanopia (blue-blind)

#006C86

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f49d0;
/* rgb */ color: rgb(63, 73, 208);
/* oklch */ color: oklch(48.6% 0.205 272.7);

Tailwind

colors: {
  custom: {
    50: '#877cdf',
    500: '#3f49d0',
    950: '#000000',
  },
}

SCSS

$custom: #3f49d0;
$custom-light: #877cdf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f49d0",
  "rgb": {
    "r": 63,
    "g": 73,
    "b": 208
  },
  "hsl": {
    "h": 235.862,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.48615,
    "c": 0.20459,
    "h": 272.7
  },
  "luminance": 0.10376
}

Semantic roles & 50–950 ramp

primary

#3F49D0

secondary

#D5D096

accent

#D944E4

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F49D0

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

Preview Lab → · Contrast checker → · Palette generator →