#1F042C#1F042C

#1F042C is a very dark, moderate purple. Relative luminance 0.006; OKLCH L 18.8% C 0.080 H 312.4°. Best body text is #FFFFFF at 18.88:1 contrast (WCAG AA passes).

Color values

HEX	#1F042C
RGB	rgb(31, 4, 44)
HSL	hsl(281, 83%, 9%)
HSV	hsv(281, 91%, 17%)
CMYK	cmyk(29.5%, 90.9%, 0%, 82.7%)
CIE-LAB	lab(5.06, 21.05, -20.04)
CIE-LCH	lch(5.06, 29.06, 316.41°)
OKLab	oklab(18.79% 0.0539 -0.0589)
OKLCH	oklch(18.79% 0.08 312.4)
XYZ	xyz(1.0630, 0.5600, 2.4345)
Luminance	0.0056 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F042C #112C04

analogous

#0B042C #1F042C #2C0425

triadic

#1F042C #2C1F04 #042C1F

tetradic

#1F042C #2C0B04 #112C04 #04252C

square

#1F042C #2C0B04 #112C04 #04252C

split-complementary

#1F042C #252C04 #042C0B

monochromatic

#14031C #14031C #1F042C #470964 #6E0E9C

Accessibility & contrast

On white

18.88

#1F042C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#1F042C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F042C

18.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F042C	#FFFFFF	#000000	##FFFFFF
##1F042C	1.00	18.88	1.11	18.88
#FFFFFF	18.88	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00102D

Deuteranopia (green-blind)

#01122B

Tritanopia (blue-blind)

#1D0C17

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #1f042c;
/* rgb */ color: rgb(31, 4, 44);
/* oklch */ color: oklch(18.8% 0.080 312.4);

Tailwind

colors: {
  custom: {
    50: '#5c4865',
    500: '#1f042c',
    950: '#000000',
  },
}

SCSS

$custom: #1f042c;
$custom-light: #5c4865;
$custom-dark: #000000;

JSON

{
  "hex": "#1f042c",
  "rgb": {
    "r": 31,
    "g": 4,
    "b": 44
  },
  "hsl": {
    "h": 280.5,
    "s": 83.333,
    "l": 9.412
  },
  "oklch": {
    "l": 0.18793,
    "c": 0.07987,
    "h": 312.4
  },
  "luminance": 0.0056
}

Semantic roles & 50–950 ramp

primary

#1F042C

secondary

#386F1D

accent

#FA2E70

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#040005

muted

#79777A

Preview Lab

Preview with #1F042C

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

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