#3F46C8#3F46C8

#3F46C8 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.4% C 0.198 H 273.6°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#3F46C8
RGB	rgb(63, 70, 200)
HSL	hsl(237, 55%, 52%)
HSV	hsv(237, 69%, 78%)
CMYK	cmyk(68.5%, 65%, 0%, 21.6%)
CIE-LAB	lab(37.13, 39.17, -68.37)
CIE-LCH	lch(37.13, 78.80, 299.81°)
OKLab	oklab(47.4% 0.0125 -0.1974)
OKLCH	oklch(47.4% 0.198 273.6)
XYZ	xyz(14.6619, 9.6058, 55.7138)
Luminance	0.0961 (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

#3F46C8 #C8C13F

analogous

#3F8BC8 #3F46C8 #7D3FC8

triadic

#3F46C8 #C83F46 #46C83F

tetradic

#3F46C8 #C83F8B #C8C13F #3FC87D

square

#3F46C8 #C83F8B #C8C13F #3FC87D

split-complementary

#3F46C8 #C87D3F #8BC83F

monochromatic

#1F236D #2D339D #3F46C8 #6F74D6 #9EA2E3

Accessibility & contrast

On white

7.19

#3F46C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#3F46C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46C8

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46C8	#FFFFFF	#000000	##FFFFFF
##3F46C8	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECC

Deuteranopia (green-blind)

#0051C6

Tritanopia (blue-blind)

#006881

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3f46c8;
/* rgb */ color: rgb(63, 70, 200);
/* oklch */ color: oklch(47.4% 0.198 273.6);

Tailwind

colors: {
  custom: {
    50: '#867ada',
    500: '#3f46c8',
    950: '#000000',
  },
}

SCSS

$custom: #3f46c8;
$custom-light: #867ada;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46c8",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 200
  },
  "hsl": {
    "h": 236.934,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.47395,
    "c": 0.19781,
    "h": 273.6
  },
  "luminance": 0.09607
}

Semantic roles & 50–950 ramp

primary

#3F46C8

secondary

#D0CC93

accent

#D749DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3F46C8

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

Preview Lab → · Contrast checker → · Palette generator →