#3F3397#3F3397

#3F3397 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.156 H 282.1°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F3397
RGB	rgb(63, 51, 151)
HSL	hsl(247, 50%, 40%)
HSV	hsv(247, 66%, 59%)
CMYK	cmyk(58.3%, 66.2%, 0%, 40.8%)
CIE-LAB	lab(28.53, 34.40, -53.22)
CIE-LCH	lch(28.53, 63.36, 302.88°)
OKLab	oklab(39.84% 0.0327 -0.153)
OKLCH	oklch(39.84% 0.156 282.1)
XYZ	xyz(8.8179, 5.6582, 29.8996)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3397 #8B9733

analogous

#335997 #3F3397 #713397

triadic

#3F3397 #973F33 #33973F

tetradic

#3F3397 #973359 #8B9733 #339771

square

#3F3397 #973359 #8B9733 #339771

split-complementary

#3F3397 #977133 #599733

monochromatic

#19143C #2C2469 #3F3397 #5547C1 #7F74D0

Accessibility & contrast

On white

9.85

#3F3397 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3F3397 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3397

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3397	#FFFFFF	#000000	##FFFFFF
##3F3397	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479A

Deuteranopia (green-blind)

#004095

Tritanopia (blue-blind)

#0E4C60

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3f3397;
/* rgb */ color: rgb(63, 51, 151);
/* oklch */ color: oklch(39.8% 0.156 282.1);

Tailwind

colors: {
  custom: {
    50: '#7d6bb6',
    500: '#3f3397',
    950: '#000000',
  },
}

SCSS

$custom: #3f3397;
$custom-light: #7d6bb6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3397",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 151
  },
  "hsl": {
    "h": 247.2,
    "s": 49.505,
    "l": 39.608
  },
  "oklch": {
    "l": 0.39842,
    "c": 0.15649,
    "h": 282.1
  },
  "luminance": 0.05659
}

Semantic roles & 50–950 ramp

primary

#3F3397

secondary

#AFB86D

accent

#D94FC8

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0711

muted

#7C7A80

Preview Lab

Preview with #3F3397

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

Preview Lab → · Contrast checker → · Palette generator →