#3F4CCE#3F4CCE

#3F4CCE is a mid, vivid blue. Relative luminance 0.107; OKLCH L 49.0% C 0.199 H 272.3°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F4CCE
RGB	rgb(63, 76, 206)
HSL	hsl(235, 59%, 53%)
HSV	hsv(235, 69%, 81%)
CMYK	cmyk(69.4%, 63.1%, 0%, 19.2%)
CIE-LAB	lab(39.04, 37.53, -68.72)
CIE-LCH	lch(39.04, 78.30, 298.64°)
OKLab	oklab(48.95% 0.0079 -0.1984)
OKLCH	oklch(48.95% 0.199 272.3)
XYZ	xyz(15.7712, 10.6803, 59.6109)
Luminance	0.1068 (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

#3F4CCE #CEC13F

analogous

#3F94CE #3F4CCE #793FCE

triadic

#3F4CCE #CE3F4C #4CCE3F

tetradic

#3F4CCE #CE3F94 #CEC13F #3FCE79

square

#3F4CCE #CE3F94 #CEC13F #3FCE79

split-complementary

#3F4CCE #CE793F #94CE3F

monochromatic

#1E2675 #2A35A6 #3F4CCE #7079DA #A1A7E7

Accessibility & contrast

On white

6.70

#3F4CCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3F4CCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4CCE

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4CCE	#FFFFFF	#000000	##FFFFFF
##3F4CCE	1.00	6.70	3.14	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063D2

Deuteranopia (green-blind)

#0055CC

Tritanopia (blue-blind)

#006E86

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f4cce;
/* rgb */ color: rgb(63, 76, 206);
/* oklch */ color: oklch(49.0% 0.199 272.3);

Tailwind

colors: {
  custom: {
    50: '#867ede',
    500: '#3f4cce',
    950: '#000000',
  },
}

SCSS

$custom: #3f4cce;
$custom-light: #867ede;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4cce",
  "rgb": {
    "r": 63,
    "g": 76,
    "b": 206
  },
  "hsl": {
    "h": 234.545,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.48951,
    "c": 0.19857,
    "h": 272.3
  },
  "luminance": 0.10682
}

Semantic roles & 50–950 ramp

primary

#3F4CCE

secondary

#D3CE95

accent

#D445E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #3F4CCE

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

Preview Lab → · Contrast checker → · Palette generator →