#3F43D6#3F43D6

#3F43D6 is a mid, highly saturated blue. Relative luminance 0.099; OKLCH L 48.2% C 0.219 H 273.4°. Best body text is #FFFFFF at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#3F43D6
RGB	rgb(63, 67, 214)
HSL	hsl(238, 65%, 54%)
HSV	hsv(238, 71%, 84%)
CMYK	cmyk(70.6%, 68.7%, 0%, 16.1%)
CIE-LAB	lab(37.71, 45.68, -75.52)
CIE-LCH	lch(37.71, 88.26, 301.17°)
OKLab	oklab(48.2% 0.013 -0.2183)
OKLCH	oklch(48.2% 0.219 273.4)
XYZ	xyz(16.1906, 9.9245, 64.6677)
Luminance	0.0993 (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

#3F43D6 #D6D23F

analogous

#3F8ED6 #3F43D6 #873FD6

triadic

#3F43D6 #D63F43 #43D63F

tetradic

#3F43D6 #D63F8E #D6D23F #3FD687

square

#3F43D6 #D63F8E #D6D23F #3FD687

split-complementary

#3F43D6 #D6873F #8ED63F

monochromatic

#1B1E7F #262AB2 #3F43D6 #7174E1 #A4A6EC

Accessibility & contrast

On white

7.03

#3F43D6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#3F43D6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F43D6

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F43D6	#FFFFFF	#000000	##FFFFFF
##3F43D6	1.00	7.03	2.99	7.03
#FFFFFF	7.03	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060DA

Deuteranopia (green-blind)

#0052D3

Tritanopia (blue-blind)

#006B87

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3f43d6;
/* rgb */ color: rgb(63, 67, 214);
/* oklch */ color: oklch(48.2% 0.219 273.4);

Tailwind

colors: {
  custom: {
    50: '#8978e4',
    500: '#3f43d6',
    950: '#000000',
  },
}

SCSS

$custom: #3f43d6;
$custom-light: #8978e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f43d6",
  "rgb": {
    "r": 63,
    "g": 67,
    "b": 214
  },
  "hsl": {
    "h": 238.411,
    "s": 64.807,
    "l": 54.314
  },
  "oklch": {
    "l": 0.48198,
    "c": 0.21872,
    "h": 273.4
  },
  "luminance": 0.09926
}

Semantic roles & 50–950 ramp

primary

#3F43D6

secondary

#D8D798

accent

#E340E8

background

#F9F7FE

surface

#F1EDFC

border

#CBC8D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #3F43D6

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

Preview Lab → · Contrast checker → · Palette generator →