#3F166B#3F166B

#3F166B is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.7% C 0.137 H 300.5°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F166B
RGB	rgb(63, 22, 107)
HSL	hsl(269, 66%, 25%)
HSV	hsv(269, 79%, 42%)
CMYK	cmyk(41.1%, 79.4%, 0%, 58%)
CIE-LAB	lab(18.77, 37.37, -41.40)
CIE-LCH	lch(18.77, 55.77, 312.07°)
OKLab	oklab(31.66% 0.0697 -0.1182)
OKLCH	oklch(31.66% 0.137 300.5)
XYZ	xyz(4.9900, 2.6921, 14.1638)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F166B #426B16

analogous

#16186B #3F166B #69166B

triadic

#3F166B #6B3F16 #166B3F

tetradic

#3F166B #6B1618 #426B16 #166B69

square

#3F166B #6B1618 #426B16 #166B69

split-complementary

#3F166B #6B6916 #186B16

monochromatic

#0F0519 #210C38 #3F166B #5D209E #7B2BD1

Accessibility & contrast

On white

13.65

#3F166B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#3F166B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F166B

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F166B	#FFFFFF	#000000	##FFFFFF
##3F166B	1.00	13.65	1.54	13.65
#FFFFFF	13.65	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6D

Deuteranopia (green-blind)

#002D69

Tritanopia (blue-blind)

#352C3F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #3f166b;
/* rgb */ color: rgb(63, 22, 107);
/* oklch */ color: oklch(31.7% 0.137 300.5);

Tailwind

colors: {
  custom: {
    50: '#795896',
    500: '#3f166b',
    950: '#000000',
  },
}

SCSS

$custom: #3f166b;
$custom-light: #795896;
$custom-dark: #000000;

JSON

{
  "hex": "#3f166b",
  "rgb": {
    "r": 63,
    "g": 22,
    "b": 107
  },
  "hsl": {
    "h": 268.941,
    "s": 65.891,
    "l": 25.294
  },
  "oklch": {
    "l": 0.31657,
    "c": 0.13722,
    "h": 300.5
  },
  "luminance": 0.02692
}

Semantic roles & 50–950 ramp

primary

#3F166B

secondary

#70A13B

accent

#E93F97

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#09030D

muted

#7B787E

Preview Lab

Preview with #3F166B

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

Preview Lab → · Contrast checker → · Palette generator →