#1B052A#1B052A

#1B052A is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.1% C 0.074 H 308.3°. Best body text is #FFFFFF at 19.06:1 contrast (WCAG AA passes).

Color values

HEX	#1B052A
RGB	rgb(27, 5, 42)
HSL	hsl(276, 79%, 9%)
HSV	hsv(276, 88%, 16%)
CMYK	cmyk(35.7%, 88.1%, 0%, 83.5%)
CIE-LAB	lab(4.59, 17.94, -19.29)
CIE-LCH	lch(4.59, 26.35, 312.93°)
OKLab	oklab(18.12% 0.0457 -0.0579)
OKLCH	oklch(18.12% 0.074 308.3)
XYZ	xyz(0.9241, 0.5087, 2.2396)
Luminance	0.0051 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B052A #142A05

analogous

#09052A #1B052A #2A0527

triadic

#1B052A #2A1B05 #052A1B

tetradic

#1B052A #2A0905 #142A05 #05272A

square

#1B052A #2A0905 #142A05 #05272A

split-complementary

#1B052A #272A05 #052A09

monochromatic

#12031B #12031B #1B052A #3E0C61 #611297

Accessibility & contrast

On white

19.06

#1B052A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#1B052A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B052A

19.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B052A	#FFFFFF	#000000	##FFFFFF
##1B052A	1.00	19.06	1.10	19.06
#FFFFFF	19.06	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F2B

Deuteranopia (green-blind)

#001029

Tritanopia (blue-blind)

#190D16

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #1b052a;
/* rgb */ color: rgb(27, 5, 42);
/* oklch */ color: oklch(18.1% 0.074 308.3);

Tailwind

colors: {
  custom: {
    50: '#584864',
    500: '#1b052a',
    950: '#000000',
  },
}

SCSS

$custom: #1b052a;
$custom-light: #584864;
$custom-dark: #000000;

JSON

{
  "hex": "#1b052a",
  "rgb": {
    "r": 27,
    "g": 5,
    "b": 42
  },
  "hsl": {
    "h": 275.676,
    "s": 78.723,
    "l": 9.216
  },
  "oklch": {
    "l": 0.18123,
    "c": 0.07373,
    "h": 308.3
  },
  "luminance": 0.00509
}

Semantic roles & 50–950 ramp

primary

#1B052A

secondary

#3E6C1F

accent

#F53381

background

#F5F4F5

surface

#E9E6EA

border

#C5C2C6

text

#030005

muted

#787779

Preview Lab

Preview with #1B052A

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

Preview Lab → · Contrast checker → · Palette generator →