#3F3497#3F3497

#3F3497 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.0% C 0.155 H 281.8°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F3497
RGB	rgb(63, 52, 151)
HSL	hsl(247, 49%, 40%)
HSV	hsv(247, 66%, 59%)
CMYK	cmyk(58.3%, 65.6%, 0%, 40.8%)
CIE-LAB	lab(28.76, 33.78, -52.84)
CIE-LCH	lch(28.76, 62.71, 302.59°)
OKLab	oklab(40.01% 0.0318 -0.1519)
OKLCH	oklch(40.01% 0.155 281.8)
XYZ	xyz(8.8621, 5.7465, 29.9144)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3497 #8C9734

analogous

#345A97 #3F3497 #713497

triadic

#3F3497 #973F34 #34973F

tetradic

#3F3497 #97345A #8C9734 #349771

square

#3F3497 #97345A #8C9734 #349771

split-complementary

#3F3497 #977134 #5A9734

monochromatic

#19153C #2C2469 #3F3497 #5548C0 #8076D0

Accessibility & contrast

On white

9.77

#3F3497 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3F3497 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3497

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3497	#FFFFFF	#000000	##FFFFFF
##3F3497	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479A

Deuteranopia (green-blind)

#004095

Tritanopia (blue-blind)

#0E4D60

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3f3497;
/* rgb */ color: rgb(63, 52, 151);
/* oklch */ color: oklch(40.0% 0.155 281.8);

Tailwind

colors: {
  custom: {
    50: '#7d6cb6',
    500: '#3f3497',
    950: '#000000',
  },
}

SCSS

$custom: #3f3497;
$custom-light: #7d6cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3497",
  "rgb": {
    "r": 63,
    "g": 52,
    "b": 151
  },
  "hsl": {
    "h": 246.667,
    "s": 48.768,
    "l": 39.804
  },
  "oklch": {
    "l": 0.4001,
    "c": 0.15521,
    "h": 281.8
  },
  "luminance": 0.05747
}

Semantic roles & 50–950 ramp

primary

#3F3497

secondary

#B0B86F

accent

#D84FC9

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0711

muted

#7C7A80

Preview Lab

Preview with #3F3497

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

Preview Lab → · Contrast checker → · Palette generator →