#3F33AE#3F33AE

#3F33AE is a dark, vivid blue. Relative luminance 0.065; OKLCH L 42.0% C 0.186 H 279.1°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#3F33AE
RGB	rgb(63, 51, 174)
HSL	hsl(246, 55%, 44%)
HSV	hsv(246, 71%, 68%)
CMYK	cmyk(63.8%, 70.7%, 0%, 31.8%)
CIE-LAB	lab(30.59, 41.88, -63.76)
CIE-LCH	lch(30.59, 76.28, 303.30°)
OKLab	oklab(41.96% 0.0294 -0.1839)
OKLCH	oklch(41.96% 0.186 279.1)
XYZ	xyz(10.8713, 6.4796, 40.7140)
Luminance	0.0648 (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

#3F33AE #A2AE33

analogous

#3365AE #3F33AE #7D33AE

triadic

#3F33AE #AE3F33 #33AE3F

tetradic

#3F33AE #AE3365 #A2AE33 #33AE7D

square

#3F33AE #AE3365 #A2AE33 #33AE7D

split-complementary

#3F33AE #AE7D33 #65AE33

monochromatic

#1D174F #2E257F #3F33AE #5E52CC #8A81DA

Accessibility & contrast

On white

9.15

#3F33AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3F33AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F33AE

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F33AE	#FFFFFF	#000000	##FFFFFF
##3F33AE	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB2

Deuteranopia (green-blind)

#0043AC

Tritanopia (blue-blind)

#00546D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3f33ae;
/* rgb */ color: rgb(63, 51, 174);
/* oklch */ color: oklch(42.0% 0.186 279.1);

Tailwind

colors: {
  custom: {
    50: '#826cc7',
    500: '#3f33ae',
    950: '#000000',
  },
}

SCSS

$custom: #3f33ae;
$custom-light: #826cc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f33ae",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 174
  },
  "hsl": {
    "h": 245.854,
    "s": 54.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.41958,
    "c": 0.18626,
    "h": 279.1
  },
  "luminance": 0.0648
}

Semantic roles & 50–950 ramp

primary

#3F33AE

secondary

#BCC379

accent

#DE4AD0

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #3F33AE

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

Preview Lab → · Contrast checker → · Palette generator →