#1F042F#1F042F

#1F042F is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.1% C 0.083 H 309.6°. Best body text is #FFFFFF at 18.81:1 contrast (WCAG AA passes).

Color values

HEX	#1F042F
RGB	rgb(31, 4, 47)
HSL	hsl(278, 84%, 10%)
HSV	hsv(278, 91%, 18%)
CMYK	cmyk(34%, 91.5%, 0%, 81.6%)
CIE-LAB	lab(5.27, 22.15, -21.95)
CIE-LCH	lch(5.27, 31.19, 315.26°)
OKLab	oklab(19.08% 0.0531 -0.0642)
OKLCH	oklch(19.08% 0.083 309.6)
XYZ	xyz(1.1215, 0.5834, 2.7423)
Luminance	0.0058 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F042F #142F04

analogous

#09042F #1F042F #2F042A

triadic

#1F042F #2F1F04 #042F1F

tetradic

#1F042F #2F0904 #142F04 #042A2F

square

#1F042F #2F0904 #142F04 #042A2F

split-complementary

#1F042F #2A2F04 #042F09

monochromatic

#13021C #13021C #1F042F #440967 #690EA0

Accessibility & contrast

On white

18.81

#1F042F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#1F042F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F042F

18.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F042F	#FFFFFF	#000000	##FFFFFF
##1F042F	1.00	18.81	1.12	18.81
#FFFFFF	18.81	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001030

Deuteranopia (green-blind)

#00122E

Tritanopia (blue-blind)

#1D0E19

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #1f042f;
/* rgb */ color: rgb(31, 4, 47);
/* oklch */ color: oklch(19.1% 0.083 309.6);

Tailwind

colors: {
  custom: {
    50: '#5c4868',
    500: '#1f042f',
    950: '#000000',
  },
}

SCSS

$custom: #1f042f;
$custom-light: #5c4868;
$custom-dark: #000000;

JSON

{
  "hex": "#1f042f",
  "rgb": {
    "r": 31,
    "g": 4,
    "b": 47
  },
  "hsl": {
    "h": 277.674,
    "s": 84.314,
    "l": 10
  },
  "oklch": {
    "l": 0.1908,
    "c": 0.08333,
    "h": 309.6
  },
  "luminance": 0.00583
}

Semantic roles & 50–950 ramp

primary

#1F042F

secondary

#3D721D

accent

#FB2D7A

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1F042F

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

Preview Lab → · Contrast checker → · Palette generator →