#1B052B#1B052B

#1B052B is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.2% C 0.075 H 307.3°. Best body text is #FFFFFF at 19.04:1 contrast (WCAG AA passes).

Color values

HEX	#1B052B
RGB	rgb(27, 5, 43)
HSL	hsl(275, 79%, 9%)
HSV	hsv(275, 88%, 17%)
CMYK	cmyk(37.2%, 88.4%, 0%, 83.1%)
CIE-LAB	lab(4.66, 18.35, -19.94)
CIE-LCH	lch(4.66, 27.10, 312.62°)
OKLab	oklab(18.22% 0.0455 -0.0596)
OKLCH	oklch(18.22% 0.075 307.3)
XYZ	xyz(0.9422, 0.5160, 2.3350)
Luminance	0.0052 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B052B #152B05

analogous

#08052B #1B052B #2B0528

triadic

#1B052B #2B1B05 #052B1B

tetradic

#1B052B #2B0805 #152B05 #05282B

square

#1B052B #2B0805 #152B05 #05282B

split-complementary

#1B052B #282B05 #052B08

monochromatic

#11031B #11031B #1B052B #3D0B62 #601299

Accessibility & contrast

On white

19.04

#1B052B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#1B052B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B052B

19.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B052B	#FFFFFF	#000000	##FFFFFF
##1B052B	1.00	19.04	1.10	19.04
#FFFFFF	19.04	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F2C

Deuteranopia (green-blind)

#00102A

Tritanopia (blue-blind)

#180D17

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #1b052b;
/* rgb */ color: rgb(27, 5, 43);
/* oklch */ color: oklch(18.2% 0.075 307.3);

Tailwind

colors: {
  custom: {
    50: '#584864',
    500: '#1b052b',
    950: '#000000',
  },
}

SCSS

$custom: #1b052b;
$custom-light: #584864;
$custom-dark: #000000;

JSON

{
  "hex": "#1b052b",
  "rgb": {
    "r": 27,
    "g": 5,
    "b": 43
  },
  "hsl": {
    "h": 274.737,
    "s": 79.167,
    "l": 9.412
  },
  "oklch": {
    "l": 0.1822,
    "c": 0.075,
    "h": 307.3
  },
  "luminance": 0.00516
}

Semantic roles & 50–950 ramp

primary

#1B052B

secondary

#406D1F

accent

#F63284

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#030005

muted

#78777A

Preview Lab

Preview with #1B052B

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

Preview Lab → · Contrast checker → · Palette generator →