#1F0339#1F0339

#1F0339 is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 19.9% C 0.097 H 301.9°. Best body text is #FFFFFF at 18.58:1 contrast (WCAG AA passes).

Color values

HEX	#1F0339
RGB	rgb(31, 3, 57)
HSL	hsl(271, 90%, 12%)
HSV	hsv(271, 95%, 22%)
CMYK	cmyk(45.6%, 94.7%, 0%, 77.6%)
CIE-LAB	lab(5.89, 26.32, -28.33)
CIE-LCH	lch(5.89, 38.68, 312.90°)
OKLab	oklab(19.95% 0.0511 -0.0821)
OKLCH	oklch(19.95% 0.097 301.9)
XYZ	xyz(1.3360, 0.6518, 3.9255)
Luminance	0.0065 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0339 #1D3903

analogous

#040339 #1F0339 #390338

triadic

#1F0339 #391F03 #03391F

tetradic

#1F0339 #390403 #1D3903 #033839

square

#1F0339 #390403 #1D3903 #033839

split-complementary

#1F0339 #383903 #033904

monochromatic

#10021D #10021D #1F0339 #3F0673 #5E09AD

Accessibility & contrast

On white

18.58

#1F0339 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#1F0339 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0339

18.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0339	#FFFFFF	#000000	##FFFFFF
##1F0339	1.00	18.58	1.13	18.58
#FFFFFF	18.58	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00133A

Deuteranopia (green-blind)

#001338

Tritanopia (blue-blind)

#19111E

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #1f0339;
/* rgb */ color: rgb(31, 3, 57);
/* oklch */ color: oklch(19.9% 0.097 301.9);

Tailwind

colors: {
  custom: {
    50: '#5e4770',
    500: '#1f0339',
    950: '#000000',
  },
}

SCSS

$custom: #1f0339;
$custom-light: #5e4770;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0339",
  "rgb": {
    "r": 31,
    "g": 3,
    "b": 57
  },
  "hsl": {
    "h": 271.111,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.19946,
    "c": 0.09668,
    "h": 301.9
  },
  "luminance": 0.00652
}

Semantic roles & 50–950 ramp

primary

#1F0339

secondary

#4A7C1C

accent

#FF2990

background

#F5F4F6

surface

#E9E6EC

border

#C5C2C7

text

#050007

muted

#79777A

Preview Lab

Preview with #1F0339

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

Preview Lab → · Contrast checker → · Palette generator →