#0A0221#0A0221

#0A0221 is a very dark, moderate violet. Relative luminance 0.002; OKLCH L 13.8% C 0.066 H 290.1°. Best body text is #FFFFFF at 20.12:1 contrast (WCAG AA passes).

Color values

HEX	#0A0221
RGB	rgb(10, 2, 33)
HSL	hsl(255, 89%, 7%)
HSV	hsv(255, 94%, 13%)
CMYK	cmyk(69.7%, 93.9%, 0%, 87.1%)
CIE-LAB	lab(1.97, 8.78, -16.52)
CIE-LCH	lch(1.97, 18.71, 297.99°)
OKLab	oklab(13.75% 0.0227 -0.062)
OKLCH	oklch(13.75% 0.066 290.1)
XYZ	xyz(0.4213, 0.2177, 1.4584)
Luminance	0.0022 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0221 #192102

analogous

#020A21 #0A0221 #1A0221

triadic

#0A0221 #210A02 #02210A

tetradic

#0A0221 #21020A #192102 #02211A

square

#0A0221 #21020A #192102 #02211A

split-complementary

#0A0221 #211A02 #0A2102

monochromatic

#09021D #09021D #0A0221 #1B055B #2D0994

Accessibility & contrast

On white

20.12

#0A0221 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#0A0221 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0221

20.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0221	#FFFFFF	#000000	##FFFFFF
##0A0221	1.00	20.12	1.04	20.12
#FFFFFF	20.12	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000822

Deuteranopia (green-blind)

#000720

Tritanopia (blue-blind)

#030810

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #0a0221;
/* rgb */ color: rgb(10, 2, 33);
/* oklch */ color: oklch(13.8% 0.066 290.1);

Tailwind

colors: {
  custom: {
    50: '#4b475c',
    500: '#0a0221',
    950: '#000000',
  },
}

SCSS

$custom: #0a0221;
$custom-light: #4b475c;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0221",
  "rgb": {
    "r": 10,
    "g": 2,
    "b": 33
  },
  "hsl": {
    "h": 255.484,
    "s": 88.571,
    "l": 6.863
  },
  "oklch": {
    "l": 0.13751,
    "c": 0.06606,
    "h": 290.1
  },
  "luminance": 0.00218
}

Semantic roles & 50–950 ramp

primary

#0A0221

secondary

#526718

accent

#FF29C8

background

#F4F4F5

surface

#E7E6E9

border

#C3C2C5

text

#010004

muted

#777779

Preview Lab

Preview with #0A0221

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

Preview Lab → · Contrast checker → · Palette generator →