#1F0F4B#1F0F4B

#1F0F4B is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.6% C 0.103 H 288.0°. Best body text is #FFFFFF at 17.10:1 contrast (WCAG AA passes).

Color values

HEX	#1F0F4B
RGB	rgb(31, 15, 75)
HSL	hsl(256, 67%, 18%)
HSV	hsv(256, 80%, 29%)
CMYK	cmyk(58.7%, 80%, 0%, 70.6%)
CIE-LAB	lab(10.11, 25.60, -34.21)
CIE-LCH	lch(10.11, 42.73, 306.81°)
OKLab	oklab(23.64% 0.0319 -0.0983)
OKLCH	oklch(23.64% 0.103 288)
XYZ	xyz(2.0055, 1.1409, 6.7698)
Luminance	0.0114 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0F4B #3B4B0F

analogous

#0F1D4B #1F0F4B #3D0F4B

triadic

#1F0F4B #4B1F0F #0F4B1F

tetradic

#1F0F4B #4B0F1D #3B4B0F #0F4B3D

square

#1F0F4B #4B0F1D #3B4B0F #0F4B3D

split-complementary

#1F0F4B #4B3D0F #1D4B0F

monochromatic

#0B051A #0B051A #1F0F4B #34197E #4923B1

Accessibility & contrast

On white

17.10

#1F0F4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#1F0F4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0F4B

17.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0F4B	#FFFFFF	#000000	##FFFFFF
##1F0F4B	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)

#001D4D

Deuteranopia (green-blind)

#001A4A

Tritanopia (blue-blind)

#0E1F2C

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #1f0f4b;
/* rgb */ color: rgb(31, 15, 75);
/* oklch */ color: oklch(23.6% 0.103 288.0);

Tailwind

colors: {
  custom: {
    50: '#614f7e',
    500: '#1f0f4b',
    950: '#000000',
  },
}

SCSS

$custom: #1f0f4b;
$custom-light: #614f7e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0f4b",
  "rgb": {
    "r": 31,
    "g": 15,
    "b": 75
  },
  "hsl": {
    "h": 256,
    "s": 66.667,
    "l": 17.647
  },
  "oklch": {
    "l": 0.23644,
    "c": 0.10338,
    "h": 288
  },
  "luminance": 0.01141
}

Semantic roles & 50–950 ramp

primary

#1F0F4B

secondary

#6F8530

accent

#EA3EBC

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1F0F4B

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

Preview Lab → · Contrast checker → · Palette generator →