#3F44C8#3F44C8

#3F44C8 is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.1% C 0.200 H 274.0°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#3F44C8
RGB	rgb(63, 68, 200)
HSL	hsl(238, 55%, 52%)
HSV	hsv(238, 69%, 78%)
CMYK	cmyk(68.5%, 66%, 0%, 21.6%)
CIE-LAB	lab(36.67, 40.39, -69.12)
CIE-LCH	lch(36.67, 80.05, 300.30°)
OKLab	oklab(47.06% 0.0139 -0.1996)
OKLCH	oklch(47.06% 0.2 274)
XYZ	xyz(14.5389, 9.3598, 55.6728)
Luminance	0.0936 (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

#3F44C8 #C8C33F

analogous

#3F89C8 #3F44C8 #7F3FC8

triadic

#3F44C8 #C83F44 #44C83F

tetradic

#3F44C8 #C83F89 #C8C33F #3FC87F

square

#3F44C8 #C83F89 #C8C33F #3FC87F

split-complementary

#3F44C8 #C87F3F #89C83F

monochromatic

#1F226D #2D319D #3F44C8 #6F72D6 #9EA1E3

Accessibility & contrast

On white

7.31

#3F44C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#3F44C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44C8

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44C8	#FFFFFF	#000000	##FFFFFF
##3F44C8	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCC

Deuteranopia (green-blind)

#0050C5

Tritanopia (blue-blind)

#006780

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f44c8;
/* rgb */ color: rgb(63, 68, 200);
/* oklch */ color: oklch(47.1% 0.200 274.0);

Tailwind

colors: {
  custom: {
    50: '#8678da',
    500: '#3f44c8',
    950: '#000000',
  },
}

SCSS

$custom: #3f44c8;
$custom-light: #8678da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44c8",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 200
  },
  "hsl": {
    "h": 237.81,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.47062,
    "c": 0.2001,
    "h": 274
  },
  "luminance": 0.09361
}

Semantic roles & 50–950 ramp

primary

#3F44C8

secondary

#D0CD93

accent

#D949DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3F44C8

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

Preview Lab → · Contrast checker → · Palette generator →