#3F183B#3F183B

#3F183B is a dark, moderate purple. Relative luminance 0.020; OKLCH L 28.3% C 0.080 H 331.5°. Best body text is #FFFFFF at 14.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F183B
RGB	rgb(63, 24, 59)
HSL	hsl(306, 45%, 17%)
HSV	hsv(306, 62%, 25%)
CMYK	cmyk(0%, 61.9%, 6.3%, 75.3%)
CIE-LAB	lab(15.62, 24.57, -13.91)
CIE-LCH	lch(15.62, 28.23, 330.49°)
OKLab	oklab(28.28% 0.07 -0.038)
OKLCH	oklch(28.28% 0.08 331.5)
XYZ	xyz(3.1659, 2.0260, 4.3611)
Luminance	0.0203 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F183B #183F1C

analogous

#30183F #3F183B #3F1828

triadic

#3F183B #3B3F18 #183B3F

tetradic

#3F183B #3F3018 #183F1C #18283F

square

#3F183B #3F3018 #183F1C #18283F

split-complementary

#3F183B #283F18 #183F30

monochromatic

#160815 #160815 #3F183B #6B2965 #983A8E

Accessibility & contrast

On white

14.94

#3F183B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#3F183B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F183B

14.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F183B	#FFFFFF	#000000	##FFFFFF
##3F183B	1.00	14.94	1.41	14.94
#FFFFFF	14.94	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16233C

Deuteranopia (green-blind)

#22293A

Tritanopia (blue-blind)

#421B27

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #3f183b;
/* rgb */ color: rgb(63, 24, 59);
/* oklch */ color: oklch(28.3% 0.080 331.5);

Tailwind

colors: {
  custom: {
    50: '#755771',
    500: '#3f183b',
    950: '#000000',
  },
}

SCSS

$custom: #3f183b;
$custom-light: #755771;
$custom-dark: #000000;

JSON

{
  "hex": "#3f183b",
  "rgb": {
    "r": 63,
    "g": 24,
    "b": 59
  },
  "hsl": {
    "h": 306.154,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.2828,
    "c": 0.07964,
    "h": 331.5
  },
  "luminance": 0.02026
}

Semantic roles & 50–950 ramp

primary

#3F183B

secondary

#3D7543

accent

#D56153

background

#F7F5F6

surface

#EDE9EC

border

#C8C5C7

text

#080307

muted

#7B787A

Preview Lab

Preview with #3F183B

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

Preview Lab → · Contrast checker → · Palette generator →