#3F41D2#3F41D2

#3F41D2 is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.5% C 0.216 H 273.9°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#3F41D2
RGB	rgb(63, 65, 210)
HSL	hsl(239, 62%, 54%)
HSV	hsv(239, 70%, 82%)
CMYK	cmyk(70%, 69%, 0%, 17.6%)
CIE-LAB	lab(36.91, 45.52, -74.52)
CIE-LCH	lch(36.91, 87.32, 301.42°)
OKLab	oklab(47.51% 0.0147 -0.2154)
OKLCH	oklch(47.51% 0.216 273.9)
XYZ	xyz(15.5692, 9.4890, 61.9713)
Luminance	0.0949 (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

#3F41D2 #D2D03F

analogous

#3F8AD2 #3F41D2 #863FD2

triadic

#3F41D2 #D23F41 #41D23F

tetradic

#3F41D2 #D23F8A #D2D03F #3FD286

square

#3F41D2 #D23F8A #D2D03F #3FD286

split-complementary

#3F41D2 #D2863F #8AD23F

monochromatic

#1D1E7A #282AAC #3F41D2 #7172DE #A2A3E9

Accessibility & contrast

On white

7.25

#3F41D2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#3F41D2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F41D2

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F41D2	#FFFFFF	#000000	##FFFFFF
##3F41D2	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED6

Deuteranopia (green-blind)

#0050CF

Tritanopia (blue-blind)

#006984

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3f41d2;
/* rgb */ color: rgb(63, 65, 210);
/* oklch */ color: oklch(47.5% 0.216 273.9);

Tailwind

colors: {
  custom: {
    50: '#8877e1',
    500: '#3f41d2',
    950: '#000000',
  },
}

SCSS

$custom: #3f41d2;
$custom-light: #8877e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f41d2",
  "rgb": {
    "r": 63,
    "g": 65,
    "b": 210
  },
  "hsl": {
    "h": 239.184,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.47512,
    "c": 0.21592,
    "h": 273.9
  },
  "luminance": 0.0949
}

Semantic roles & 50–950 ramp

primary

#3F41D2

secondary

#D6D597

accent

#E343E5

background

#F9F7FE

surface

#F1EDFC

border

#CBC8D5

text

#0D0915

muted

#7E7B84

Preview Lab

Preview with #3F41D2

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

Preview Lab → · Contrast checker → · Palette generator →