#1F042D#1F042D

#1F042D is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 18.9% C 0.081 H 311.5°. Best body text is #FFFFFF at 18.86:1 contrast (WCAG AA passes).

Color values

HEX	#1F042D
RGB	rgb(31, 4, 45)
HSL	hsl(280, 84%, 10%)
HSV	hsv(280, 91%, 18%)
CMYK	cmyk(31.1%, 91.1%, 0%, 82.4%)
CIE-LAB	lab(5.13, 21.42, -20.68)
CIE-LCH	lch(5.13, 29.77, 316.00°)
OKLab	oklab(18.89% 0.0537 -0.0607)
OKLCH	oklch(18.89% 0.081 311.5)
XYZ	xyz(1.0821, 0.5676, 2.5347)
Luminance	0.0057 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F042D #122D04

analogous

#0B042D #1F042D #2D0427

triadic

#1F042D #2D1F04 #042D1F

tetradic

#1F042D #2D0B04 #122D04 #04272D

square

#1F042D #2D0B04 #122D04 #04272D

split-complementary

#1F042D #272D04 #042D0B

monochromatic

#13021C #13021C #1F042D #460965 #6C0E9D

Accessibility & contrast

On white

18.86

#1F042D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#1F042D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F042D

18.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F042D	#FFFFFF	#000000	##FFFFFF
##1F042D	1.00	18.86	1.11	18.86
#FFFFFF	18.86	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00102E

Deuteranopia (green-blind)

#00122C

Tritanopia (blue-blind)

#1D0D18

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #1f042d;
/* rgb */ color: rgb(31, 4, 45);
/* oklch */ color: oklch(18.9% 0.081 311.5);

Tailwind

colors: {
  custom: {
    50: '#5c4866',
    500: '#1f042d',
    950: '#000000',
  },
}

SCSS

$custom: #1f042d;
$custom-light: #5c4866;
$custom-dark: #000000;

JSON

{
  "hex": "#1f042d",
  "rgb": {
    "r": 31,
    "g": 4,
    "b": 45
  },
  "hsl": {
    "h": 279.512,
    "s": 83.673,
    "l": 9.608
  },
  "oklch": {
    "l": 0.18887,
    "c": 0.08102,
    "h": 311.5
  },
  "luminance": 0.00568
}

Semantic roles & 50–950 ramp

primary

#1F042D

secondary

#39701D

accent

#FA2E74

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1F042D

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

Preview Lab → · Contrast checker → · Palette generator →