#1F0540#1F0540

#1F0540 is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 21.0% C 0.102 H 296.6°. Best body text is #FFFFFF at 18.20:1 contrast (WCAG AA passes).

Color values

HEX	#1F0540
RGB	rgb(31, 5, 64)
HSL	hsl(266, 86%, 14%)
HSV	hsv(266, 92%, 25%)
CMYK	cmyk(51.6%, 92.2%, 0%, 74.9%)
CIE-LAB	lab(6.96, 27.70, -31.64)
CIE-LCH	lch(6.96, 42.05, 311.20°)
OKLab	oklab(21.04% 0.0455 -0.091)
OKLCH	oklch(21.04% 0.102 296.6)
XYZ	xyz(1.5445, 0.7700, 4.9167)
Luminance	0.0077 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0540 #264005

analogous

#050840 #1F0540 #3C0540

triadic

#1F0540 #401F05 #05401F

tetradic

#1F0540 #400508 #264005 #05403C

square

#1F0540 #400508 #264005 #05403C

split-complementary

#1F0540 #403C05 #084005

monochromatic

#0E021C #0E021C #1F0540 #3A0979 #560EB2

Accessibility & contrast

On white

18.20

#1F0540 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#1F0540 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0540

18.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0540	#FFFFFF	#000000	##FFFFFF
##1F0540	1.00	18.20	1.15	18.20
#FFFFFF	18.20	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001642

Deuteranopia (green-blind)

#00153F

Tritanopia (blue-blind)

#161623

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #1f0540;
/* rgb */ color: rgb(31, 5, 64);
/* oklch */ color: oklch(21.0% 0.102 296.6);

Tailwind

colors: {
  custom: {
    50: '#5f4875',
    500: '#1f0540',
    950: '#000000',
  },
}

SCSS

$custom: #1f0540;
$custom-light: #5f4875;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0540",
  "rgb": {
    "r": 31,
    "g": 5,
    "b": 64
  },
  "hsl": {
    "h": 266.441,
    "s": 85.507,
    "l": 13.529
  },
  "oklch": {
    "l": 0.21036,
    "c": 0.10171,
    "h": 296.6
  },
  "luminance": 0.0077
}

Semantic roles & 50–950 ramp

primary

#1F0540

secondary

#568120

accent

#FC2CA0

background

#F5F4F7

surface

#EAE7ED

border

#C6C3C8

text

#050108

muted

#79777B

Preview Lab

Preview with #1F0540

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

Preview Lab → · Contrast checker → · Palette generator →