#1F0340#1F0340

#1F0340 is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.7% C 0.105 H 297.2°. Best body text is #FFFFFF at 18.33:1 contrast (WCAG AA passes).

Color values

HEX	#1F0340
RGB	rgb(31, 3, 64)
HSL	hsl(268, 91%, 13%)
HSV	hsv(268, 95%, 25%)
CMYK	cmyk(51.6%, 95.3%, 0%, 74.9%)
CIE-LAB	lab(6.56, 28.79, -32.28)
CIE-LCH	lch(6.56, 43.26, 311.73°)
OKLab	oklab(20.74% 0.0479 -0.093)
OKLCH	oklch(20.74% 0.105 297.2)
XYZ	xyz(1.5228, 0.7266, 4.9095)
Luminance	0.0073 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0340 #244003

analogous

#030540 #1F0340 #3D0340

triadic

#1F0340 #401F03 #03401F

tetradic

#1F0340 #400305 #244003 #03403D

square

#1F0340 #400305 #244003 #03403D

split-complementary

#1F0340 #403D03 #054003

monochromatic

#0E011D #0E011D #1F0340 #3B067A #5808B5

Accessibility & contrast

On white

18.33

#1F0340 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#1F0340 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0340

18.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0340	#FFFFFF	#000000	##FFFFFF
##1F0340	1.00	18.33	1.15	18.33
#FFFFFF	18.33	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001542

Deuteranopia (green-blind)

#00143F

Tritanopia (blue-blind)

#161522

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #1f0340;
/* rgb */ color: rgb(31, 3, 64);
/* oklch */ color: oklch(20.7% 0.105 297.2);

Tailwind

colors: {
  custom: {
    50: '#604775',
    500: '#1f0340',
    950: '#000000',
  },
}

SCSS

$custom: #1f0340;
$custom-light: #604775;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0340",
  "rgb": {
    "r": 31,
    "g": 3,
    "b": 64
  },
  "hsl": {
    "h": 267.541,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.20735,
    "c": 0.10463,
    "h": 297.2
  },
  "luminance": 0.00727
}

Semantic roles & 50–950 ramp

primary

#1F0340

secondary

#54821D

accent

#FF299D

background

#F5F4F7

surface

#EAE6ED

border

#C6C2C8

text

#050008

muted

#79777B

Preview Lab

Preview with #1F0340

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

Preview Lab → · Contrast checker → · Palette generator →