#1F012F#1F012F

#1F012F is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.5% C 0.090 H 310.8°. Best body text is #FFFFFF at 19.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F012F
RGB	rgb(31, 1, 47)
HSL	hsl(279, 96%, 9%)
HSV	hsv(279, 98%, 18%)
CMYK	cmyk(34%, 97.9%, 0%, 81.6%)
CIE-LAB	lab(4.68, 23.57, -22.89)
CIE-LCH	lch(4.68, 32.86, 315.84°)
OKLab	oklab(18.52% 0.0586 -0.068)
OKLCH	oklch(18.52% 0.09 310.8)
XYZ	xyz(1.0889, 0.5183, 2.7314)
Luminance	0.0052 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F012F #112F01

analogous

#08012F #1F012F #2F0128

triadic

#1F012F #2F1F01 #012F1F

tetradic

#1F012F #2F0801 #112F01 #01282F

square

#1F012F #2F0801 #112F01 #01282F

split-complementary

#1F012F #282F01 #012F08

monochromatic

#14011E #14011E #1F012F #47026B #6E04A7

Accessibility & contrast

On white

19.03

#1F012F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#1F012F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F012F

19.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F012F	#FFFFFF	#000000	##FFFFFF
##1F012F	1.00	19.03	1.10	19.03
#FFFFFF	19.03	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F30

Deuteranopia (green-blind)

#00102E

Tritanopia (blue-blind)

#1D0B18

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #1f012f;
/* rgb */ color: rgb(31, 1, 47);
/* oklch */ color: oklch(18.5% 0.090 310.8);

Tailwind

colors: {
  custom: {
    50: '#5c4668',
    500: '#1f012f',
    950: '#000000',
  },
}

SCSS

$custom: #1f012f;
$custom-light: #5c4668;
$custom-dark: #000000;

JSON

{
  "hex": "#1f012f",
  "rgb": {
    "r": 31,
    "g": 1,
    "b": 47
  },
  "hsl": {
    "h": 279.13,
    "s": 95.833,
    "l": 9.412
  },
  "oklch": {
    "l": 0.18519,
    "c": 0.08981,
    "h": 310.8
  },
  "luminance": 0.00518
}

Semantic roles & 50–950 ramp

primary

#1F012F

secondary

#387517

accent

#FF2973

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1F012F

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

Preview Lab → · Contrast checker → · Palette generator →