#1F0B52#1F0B52

#1F0B52 is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.9% C 0.117 H 286.4°. Best body text is #FFFFFF at 17.10:1 contrast (WCAG AA passes).

Color values

HEX	#1F0B52
RGB	rgb(31, 11, 82)
HSL	hsl(257, 76%, 18%)
HSV	hsv(257, 87%, 32%)
CMYK	cmyk(62.2%, 86.6%, 0%, 67.8%)
CIE-LAB	lab(10.10, 30.13, -39.05)
CIE-LCH	lch(10.10, 49.33, 307.65°)
OKLab	oklab(23.87% 0.0331 -0.1125)
OKLCH	oklch(23.87% 0.117 286.4)
XYZ	xyz(2.2073, 1.1397, 8.0847)
Luminance	0.0114 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0B52 #3E520B

analogous

#0B1B52 #1F0B52 #420B52

triadic

#1F0B52 #521F0B #0B521F

tetradic

#1F0B52 #520B1B #3E520B #0B5242

square

#1F0B52 #520B1B #3E520B #0B5242

split-complementary

#1F0B52 #52420B #1B520B

monochromatic

#0A041B #0B041C #1F0B52 #331288 #4819BE

Accessibility & contrast

On white

17.10

#1F0B52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#1F0B52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0B52

17.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0B52	#FFFFFF	#000000	##FFFFFF
##1F0B52	1.00	17.10	1.23	17.10
#FFFFFF	17.10	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D54

Deuteranopia (green-blind)

#001A51

Tritanopia (blue-blind)

#06202F

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #1f0b52;
/* rgb */ color: rgb(31, 11, 82);
/* oklch */ color: oklch(23.9% 0.117 286.4);

Tailwind

colors: {
  custom: {
    50: '#624d83',
    500: '#1f0b52',
    950: '#000000',
  },
}

SCSS

$custom: #1f0b52;
$custom-light: #624d83;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0b52",
  "rgb": {
    "r": 31,
    "g": 11,
    "b": 82
  },
  "hsl": {
    "h": 256.901,
    "s": 76.344,
    "l": 18.235
  },
  "oklch": {
    "l": 0.23871,
    "c": 0.11724,
    "h": 286.4
  },
  "luminance": 0.0114
}

Semantic roles & 50–950 ramp

primary

#1F0B52

secondary

#728E2B

accent

#F335BD

background

#F6F4F8

surface

#EBE7EF

border

#C6C3CA

text

#06010B

muted

#7A777C

Preview Lab

Preview with #1F0B52

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

Preview Lab → · Contrast checker → · Palette generator →