#3F3797#3F3797

#3F3797 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.5% C 0.151 H 281.0°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#3F3797
RGB	rgb(63, 55, 151)
HSL	hsl(245, 47%, 40%)
HSV	hsv(245, 64%, 59%)
CMYK	cmyk(58.3%, 63.6%, 0%, 40.8%)
CIE-LAB	lab(29.47, 31.91, -51.69)
CIE-LCH	lch(29.47, 60.74, 301.69°)
OKLab	oklab(40.53% 0.0289 -0.1485)
OKLCH	oklch(40.53% 0.151 281)
XYZ	xyz(9.0003, 6.0229, 29.9604)
Luminance	0.0602 (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

#3F3797 #8F9737

analogous

#375F97 #3F3797 #6F3797

triadic

#3F3797 #973F37 #37973F

tetradic

#3F3797 #97375F #8F9737 #37976F

square

#3F3797 #97375F #8F9737 #37976F

split-complementary

#3F3797 #976F37 #5F9737

monochromatic

#1A163D #2C276A #3F3797 #564DBE #817ACF

Accessibility & contrast

On white

9.52

#3F3797 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#3F3797 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3797

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3797	#FFFFFF	#000000	##FFFFFF
##3F3797	1.00	9.52	2.20	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499A

Deuteranopia (green-blind)

#004295

Tritanopia (blue-blind)

#0D4F61

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f3797;
/* rgb */ color: rgb(63, 55, 151);
/* oklch */ color: oklch(40.5% 0.151 281.0);

Tailwind

colors: {
  custom: {
    50: '#7d6eb6',
    500: '#3f3797',
    950: '#000000',
  },
}

SCSS

$custom: #3f3797;
$custom-light: #7d6eb6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3797",
  "rgb": {
    "r": 63,
    "g": 55,
    "b": 151
  },
  "hsl": {
    "h": 245,
    "s": 46.602,
    "l": 40.392
  },
  "oklch": {
    "l": 0.40525,
    "c": 0.15132,
    "h": 281
  },
  "luminance": 0.06024
}

Semantic roles & 50–950 ramp

primary

#3F3797

secondary

#B2B872

accent

#D652CB

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0711

muted

#7C7A80

Preview Lab

Preview with #3F3797

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

Preview Lab → · Contrast checker → · Palette generator →