#3F44D0#3F44D0

#3F44D0 is a mid, highly saturated blue. Relative luminance 0.097; OKLCH L 47.8% C 0.210 H 273.6°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F44D0
RGB	rgb(63, 68, 208)
HSL	hsl(238, 61%, 53%)
HSV	hsv(238, 70%, 82%)
CMYK	cmyk(69.7%, 67.3%, 0%, 18.4%)
CIE-LAB	lab(37.38, 43.08, -72.60)
CIE-LCH	lch(37.38, 84.42, 300.69°)
OKLab	oklab(47.8% 0.0131 -0.2098)
OKLCH	oklch(47.8% 0.21 273.6)
XYZ	xyz(15.4984, 9.7436, 60.7262)
Luminance	0.0974 (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

#3F44D0 #D0CB3F

analogous

#3F8CD0 #3F44D0 #823FD0

triadic

#3F44D0 #D03F44 #44D03F

tetradic

#3F44D0 #D03F8C #D0CB3F #3FD082

square

#3F44D0 #D03F8C #D0CB3F #3FD082

split-complementary

#3F44D0 #D0823F #8CD03F

monochromatic

#1D2077 #292EA9 #3F44D0 #7074DC #A1A4E8

Accessibility & contrast

On white

7.12

#3F44D0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#3F44D0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44D0

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44D0	#FFFFFF	#000000	##FFFFFF
##3F44D0	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD4

Deuteranopia (green-blind)

#0051CD

Tritanopia (blue-blind)

#006A84

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3f44d0;
/* rgb */ color: rgb(63, 68, 208);
/* oklch */ color: oklch(47.8% 0.210 273.6);

Tailwind

colors: {
  custom: {
    50: '#8778e0',
    500: '#3f44d0',
    950: '#000000',
  },
}

SCSS

$custom: #3f44d0;
$custom-light: #8778e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44d0",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 208
  },
  "hsl": {
    "h": 237.931,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.47795,
    "c": 0.2102,
    "h": 273.6
  },
  "luminance": 0.09745
}

Semantic roles & 50–950 ramp

primary

#3F44D0

secondary

#D5D396

accent

#DE44E4

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F44D0

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

Preview Lab → · Contrast checker → · Palette generator →