#1F0131#1F0131

#1F0131 is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.7% C 0.092 H 309.0°. Best body text is #FFFFFF at 18.97:1 contrast (WCAG AA passes).

Color values

HEX	#1F0131
RGB	rgb(31, 1, 49)
HSL	hsl(278, 96%, 10%)
HSV	hsv(278, 98%, 19%)
CMYK	cmyk(36.7%, 98%, 0%, 80.8%)
CIE-LAB	lab(4.83, 24.34, -24.15)
CIE-LCH	lch(4.83, 34.28, 315.22°)
OKLab	oklab(18.73% 0.0578 -0.0714)
OKLCH	oklch(18.73% 0.092 309)
XYZ	xyz(1.1302, 0.5348, 2.9488)
Luminance	0.0053 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0131 #133101

analogous

#070131 #1F0131 #31012B

triadic

#1F0131 #311F01 #01311F

tetradic

#1F0131 #310701 #133101 #012B31

square

#1F0131 #310701 #133101 #012B31

split-complementary

#1F0131 #2B3101 #013107

monochromatic

#13011E #13011E #1F0131 #45026D #6B03A9

Accessibility & contrast

On white

18.97

#1F0131 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#1F0131 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0131

18.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0131	#FFFFFF	#000000	##FFFFFF
##1F0131	1.00	18.97	1.11	18.97
#FFFFFF	18.97	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F32

Deuteranopia (green-blind)

#001130

Tritanopia (blue-blind)

#1C0C19

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #1f0131;
/* rgb */ color: rgb(31, 1, 49);
/* oklch */ color: oklch(18.7% 0.092 309.0);

Tailwind

colors: {
  custom: {
    50: '#5d4669',
    500: '#1f0131',
    950: '#000000',
  },
}

SCSS

$custom: #1f0131;
$custom-light: #5d4669;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0131",
  "rgb": {
    "r": 31,
    "g": 1,
    "b": 49
  },
  "hsl": {
    "h": 277.5,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.18729,
    "c": 0.09186,
    "h": 309
  },
  "luminance": 0.00535
}

Semantic roles & 50–950 ramp

primary

#1F0131

secondary

#3B7717

accent

#FF2979

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1F0131

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

Preview Lab → · Contrast checker → · Palette generator →