#3F349B#3F349B

#3F349B is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.4% C 0.161 H 281.3°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F349B
RGB	rgb(63, 52, 155)
HSL	hsl(246, 50%, 41%)
HSV	hsv(246, 66%, 61%)
CMYK	cmyk(59.4%, 66.5%, 0%, 39.2%)
CIE-LAB	lab(29.10, 35.09, -54.73)
CIE-LCH	lch(29.10, 65.01, 302.67°)
OKLab	oklab(40.36% 0.0313 -0.1575)
OKLCH	oklch(40.36% 0.161 281.3)
XYZ	xyz(9.1924, 5.8787, 31.6543)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.01

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F349B #909B34

analogous

#345C9B #3F349B #72349B

triadic

#3F349B #9B3F34 #349B3F

tetradic

#3F349B #9B345C #909B34 #349B72

square

#3F349B #9B345C #909B34 #349B72

split-complementary

#3F349B #9B7234 #5C9B34

monochromatic

#1A153F #2C256D #3F349B #574AC2 #8178D2

Accessibility & contrast

On white

9.65

#3F349B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#3F349B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F349B

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F349B	#FFFFFF	#000000	##FFFFFF
##3F349B	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489E

Deuteranopia (green-blind)

#004199

Tritanopia (blue-blind)

#044E63

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f349b;
/* rgb */ color: rgb(63, 52, 155);
/* oklch */ color: oklch(40.4% 0.161 281.3);

Tailwind

colors: {
  custom: {
    50: '#7e6cb9',
    500: '#3f349b',
    950: '#000000',
  },
}

SCSS

$custom: #3f349b;
$custom-light: #7e6cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f349b",
  "rgb": {
    "r": 63,
    "g": 52,
    "b": 155
  },
  "hsl": {
    "h": 246.408,
    "s": 49.758,
    "l": 40.588
  },
  "oklch": {
    "l": 0.40363,
    "c": 0.16056,
    "h": 281.3
  },
  "luminance": 0.05879
}

Semantic roles & 50–950 ramp

primary

#3F349B

secondary

#B2BA71

accent

#D94FCA

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3F349B

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

Preview Lab → · Contrast checker → · Palette generator →