#1F0B40#1F0B40

#1F0B40 is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.9% C 0.094 H 294.6°. Best body text is #FFFFFF at 17.79:1 contrast (WCAG AA passes).

Color values

HEX	#1F0B40
RGB	rgb(31, 11, 64)
HSL	hsl(263, 71%, 15%)
HSV	hsv(263, 83%, 25%)
CMYK	cmyk(51.6%, 82.8%, 0%, 74.9%)
CIE-LAB	lab(8.14, 24.37, -29.71)
CIE-LCH	lch(8.14, 38.43, 309.36°)
OKLab	oklab(21.9% 0.039 -0.0851)
OKLCH	oklch(21.9% 0.094 294.6)
XYZ	xyz(1.6099, 0.9008, 4.9385)
Luminance	0.0090 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0B40 #2C400B

analogous

#0B1140 #1F0B40 #3A0B40

triadic

#1F0B40 #401F0B #0B401F

tetradic

#1F0B40 #400B11 #2C400B #0B403A

square

#1F0B40 #400B11 #2C400B #0B403A

split-complementary

#1F0B40 #403A0B #11400B

monochromatic

#0D041A #0D041A #1F0B40 #381474 #521DA8

Accessibility & contrast

On white

17.79

#1F0B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#1F0B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0B40

17.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0B40	#FFFFFF	#000000	##FFFFFF
##1F0B40	1.00	17.79	1.18	17.79
#FFFFFF	17.79	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001842

Deuteranopia (green-blind)

#00173F

Tritanopia (blue-blind)

#161924

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #1f0b40;
/* rgb */ color: rgb(31, 11, 64);
/* oklch */ color: oklch(21.9% 0.094 294.6);

Tailwind

colors: {
  custom: {
    50: '#5f4c75',
    500: '#1f0b40',
    950: '#000000',
  },
}

SCSS

$custom: #1f0b40;
$custom-light: #5f4c75;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0b40",
  "rgb": {
    "r": 31,
    "g": 11,
    "b": 64
  },
  "hsl": {
    "h": 262.642,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.21895,
    "c": 0.0936,
    "h": 294.6
  },
  "luminance": 0.00901
}

Semantic roles & 50–950 ramp

primary

#1F0B40

secondary

#5E7D2A

accent

#ED3AAA

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#050108

muted

#79777B

Preview Lab

Preview with #1F0B40

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

Preview Lab → · Contrast checker → · Palette generator →