#3F187B#3F187B

#3F187B is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.4% C 0.153 H 294.3°. Best body text is #FFFFFF at 12.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F187B
RGB	rgb(63, 24, 123)
HSL	hsl(264, 67%, 29%)
HSV	hsv(264, 80%, 48%)
CMYK	cmyk(48.8%, 80.5%, 0%, 51.8%)
CIE-LAB	lab(20.60, 40.80, -48.72)
CIE-LCH	lch(20.60, 63.55, 309.94°)
OKLab	oklab(33.4% 0.0632 -0.1397)
OKLCH	oklch(33.4% 0.153 294.3)
XYZ	xyz(5.9507, 3.1399, 19.0276)
Luminance	0.0314 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F187B #547B18

analogous

#18237B #3F187B #71187B

triadic

#3F187B #7B3F18 #187B3F

tetradic

#3F187B #7B1823 #547B18 #187B71

square

#3F187B #7B1823 #547B18 #187B71

split-complementary

#3F187B #7B7118 #237B18

monochromatic

#0D051A #250E48 #3F187B #5922AE #7636D8

Accessibility & contrast

On white

12.90

#3F187B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#3F187B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F187B

12.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F187B	#FFFFFF	#000000	##FFFFFF
##3F187B	1.00	12.90	1.63	12.90
#FFFFFF	12.90	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337E

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#2D3449

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #3f187b;
/* rgb */ color: rgb(63, 24, 123);
/* oklch */ color: oklch(33.4% 0.153 294.3);

Tailwind

colors: {
  custom: {
    50: '#7b5aa2',
    500: '#3f187b',
    950: '#000000',
  },
}

SCSS

$custom: #3f187b;
$custom-light: #7b5aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f187b",
  "rgb": {
    "r": 63,
    "g": 24,
    "b": 123
  },
  "hsl": {
    "h": 263.636,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.33401,
    "c": 0.15336,
    "h": 294.3
  },
  "luminance": 0.0314
}

Semantic roles & 50–950 ramp

primary

#3F187B

secondary

#83B03F

accent

#EA3EA6

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #3F187B

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

Preview Lab → · Contrast checker → · Palette generator →