#3F3A91#3F3A91

#3F3A91 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.6% C 0.139 H 280.8°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F3A91
RGB	rgb(63, 58, 145)
HSL	hsl(243, 43%, 40%)
HSV	hsv(243, 60%, 57%)
CMYK	cmyk(56.6%, 60%, 0%, 43.1%)
CIE-LAB	lab(29.73, 27.98, -47.59)
CIE-LCH	lch(29.73, 55.21, 300.46°)
OKLab	oklab(40.57% 0.026 -0.1365)
OKLCH	oklch(40.57% 0.139 280.8)
XYZ	xyz(8.6722, 6.1267, 27.5082)
Luminance	0.0613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3A91 #8C913A

analogous

#3A6191 #3F3A91 #6A3A91

triadic

#3F3A91 #913F3A #3A913F

tetradic

#3F3A91 #913A61 #8C913A #3A916A

square

#3F3A91 #913A61 #8C913A #3A916A

split-complementary

#3F3A91 #916A3A #61913A

monochromatic

#19173A #2C2965 #3F3A91 #554FB9 #807BCA

Accessibility & contrast

On white

9.44

#3F3A91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3F3A91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3A91

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3A91	#FFFFFF	#000000	##FFFFFF
##3F3A91	1.00	9.44	2.23	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#00438F

Tritanopia (blue-blind)

#174F5F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3f3a91;
/* rgb */ color: rgb(63, 58, 145);
/* oklch */ color: oklch(40.6% 0.139 280.8);

Tailwind

colors: {
  custom: {
    50: '#7c70b2',
    500: '#3f3a91',
    950: '#000000',
  },
}

SCSS

$custom: #3f3a91;
$custom-light: #7c70b2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3a91",
  "rgb": {
    "r": 63,
    "g": 58,
    "b": 145
  },
  "hsl": {
    "h": 243.448,
    "s": 42.857,
    "l": 39.804
  },
  "oklch": {
    "l": 0.40566,
    "c": 0.13893,
    "h": 280.8
  },
  "luminance": 0.06127
}

Semantic roles & 50–950 ramp

primary

#3F3A91

secondary

#B0B473

accent

#D355CB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #3F3A91

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

Preview Lab → · Contrast checker → · Palette generator →