#1F092B#1F092B

#1F092B is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 19.6% C 0.068 H 311.5°. Best body text is #FFFFFF at 18.55:1 contrast (WCAG AA passes).

Color values

HEX	#1F092B
RGB	rgb(31, 9, 43)
HSL	hsl(279, 65%, 10%)
HSV	hsv(279, 79%, 17%)
CMYK	cmyk(27.9%, 79.1%, 0%, 83.1%)
CIE-LAB	lab(5.97, 18.35, -17.84)
CIE-LCH	lch(5.97, 25.59, 315.80°)
OKLab	oklab(19.6% 0.0454 -0.0512)
OKLCH	oklch(19.6% 0.068 311.5)
XYZ	xyz(1.0987, 0.6611, 2.3548)
Luminance	0.0066 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F092B #152B09

analogous

#0E092B #1F092B #2B0926

triadic

#1F092B #2B1F09 #092B1F

tetradic

#1F092B #2B0E09 #152B09 #09262B

square

#1F092B #2B0E09 #152B09 #09262B

split-complementary

#1F092B #262B09 #092B0E

monochromatic

#120519 #120519 #1F092B #43145E #681E90

Accessibility & contrast

On white

18.55

#1F092B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#1F092B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F092B

18.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F092B	#FFFFFF	#000000	##FFFFFF
##1F092B	1.00	18.55	1.13	18.55
#FFFFFF	18.55	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00122C

Deuteranopia (green-blind)

#06142A

Tritanopia (blue-blind)

#1E1018

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #1f092b;
/* rgb */ color: rgb(31, 9, 43);
/* oklch */ color: oklch(19.6% 0.068 311.5);

Tailwind

colors: {
  custom: {
    50: '#5c4a64',
    500: '#1f092b',
    950: '#000000',
  },
}

SCSS

$custom: #1f092b;
$custom-light: #5c4a64;
$custom-dark: #000000;

JSON

{
  "hex": "#1f092b",
  "rgb": {
    "r": 31,
    "g": 9,
    "b": 43
  },
  "hsl": {
    "h": 278.824,
    "s": 65.385,
    "l": 10.196
  },
  "oklch": {
    "l": 0.19601,
    "c": 0.06843,
    "h": 311.5
  },
  "luminance": 0.00661
}

Semantic roles & 50–950 ramp

primary

#1F092B

secondary

#3E6927

accent

#E83F7B

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#040105

muted

#79777A

Preview Lab

Preview with #1F092B

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

Preview Lab → · Contrast checker → · Palette generator →