#3F49D2#3F49D2

#3F49D2 is a mid, highly saturated blue. Relative luminance 0.105; OKLCH L 48.8% C 0.207 H 272.7°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#3F49D2
RGB	rgb(63, 73, 210)
HSL	hsl(236, 62%, 54%)
HSV	hsv(236, 70%, 82%)
CMYK	cmyk(70%, 65.2%, 0%, 17.6%)
CIE-LAB	lab(38.68, 40.74, -71.62)
CIE-LCH	lch(38.68, 82.40, 299.64°)
OKLab	oklab(48.79% 0.0096 -0.2069)
OKLCH	oklch(48.79% 0.207 272.7)
XYZ	xyz(16.0614, 10.4734, 62.1354)
Luminance	0.1047 (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

#3F49D2 #D2C83F

analogous

#3F92D2 #3F49D2 #7E3FD2

triadic

#3F49D2 #D23F49 #49D23F

tetradic

#3F49D2 #D23F92 #D2C83F #3FD27E

square

#3F49D2 #D23F92 #D2C83F #3FD27E

split-complementary

#3F49D2 #D27E3F #92D23F

monochromatic

#1D237A #2831AC #3F49D2 #7178DE #A2A7E9

Accessibility & contrast

On white

6.79

#3F49D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3F49D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F49D2

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F49D2	#FFFFFF	#000000	##FFFFFF
##3F49D2	1.00	6.79	3.10	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062D6

Deuteranopia (green-blind)

#0054CF

Tritanopia (blue-blind)

#006D87

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f49d2;
/* rgb */ color: rgb(63, 73, 210);
/* oklch */ color: oklch(48.8% 0.207 272.7);

Tailwind

colors: {
  custom: {
    50: '#877ce1',
    500: '#3f49d2',
    950: '#000000',
  },
}

SCSS

$custom: #3f49d2;
$custom-light: #877ce1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f49d2",
  "rgb": {
    "r": 63,
    "g": 73,
    "b": 210
  },
  "hsl": {
    "h": 235.918,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.48794,
    "c": 0.20713,
    "h": 272.7
  },
  "luminance": 0.10475
}

Semantic roles & 50–950 ramp

primary

#3F49D2

secondary

#D6D297

accent

#DA43E5

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F49D2

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

Preview Lab → · Contrast checker → · Palette generator →