#1F102F#1F102F

#1F102F is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.2% C 0.061 H 304.0°. Best body text is #FFFFFF at 17.90:1 contrast (WCAG AA passes).

Color values

HEX	#1F102F
RGB	rgb(31, 16, 47)
HSL	hsl(269, 49%, 12%)
HSV	hsv(269, 66%, 18%)
CMYK	cmyk(34%, 66%, 0%, 81.6%)
CIE-LAB	lab(7.83, 15.71, -17.87)
CIE-LCH	lch(7.83, 23.80, 311.32°)
OKLab	oklab(21.2% 0.034 -0.0503)
OKLCH	oklch(21.2% 0.061 304)
XYZ	xyz(1.2633, 0.8671, 2.7896)
Luminance	0.0087 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F102F #202F10

analogous

#10112F #1F102F #2E102F

triadic

#1F102F #2F1F10 #102F1F

tetradic

#1F102F #2F1011 #202F10 #102F2E

square

#1F102F #2F1011 #202F10 #102F2E

split-complementary

#1F102F #2F2E10 #112F10

monochromatic

#0F0817 #0F0817 #1F102F #3D205D #5B2F8A

Accessibility & contrast

On white

17.90

#1F102F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#1F102F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F102F

17.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F102F	#FFFFFF	#000000	##FFFFFF
##1F102F	1.00	17.90	1.17	17.90
#FFFFFF	17.90	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061730

Deuteranopia (green-blind)

#0A172E

Tritanopia (blue-blind)

#1C161D

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #1f102f;
/* rgb */ color: rgb(31, 16, 47);
/* oklch */ color: oklch(21.2% 0.061 304.0);

Tailwind

colors: {
  custom: {
    50: '#5c4e67',
    500: '#1f102f',
    950: '#000000',
  },
}

SCSS

$custom: #1f102f;
$custom-light: #5c4e67;
$custom-dark: #000000;

JSON

{
  "hex": "#1f102f",
  "rgb": {
    "r": 31,
    "g": 16,
    "b": 47
  },
  "hsl": {
    "h": 269.032,
    "s": 49.206,
    "l": 12.353
  },
  "oklch": {
    "l": 0.21204,
    "c": 0.06075,
    "h": 304
  },
  "luminance": 0.00867
}

Semantic roles & 50–950 ramp

primary

#1F102F

secondary

#4E6833

accent

#D94F96

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#040106

muted

#79777A

Preview Lab

Preview with #1F102F

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

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