#1B042C#1B042C

#1B042C is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.1% C 0.078 H 306.9°. Best body text is #FFFFFF at 19.08:1 contrast (WCAG AA passes).

Color values

HEX	#1B042C
RGB	rgb(27, 4, 44)
HSL	hsl(275, 83%, 9%)
HSV	hsv(275, 91%, 17%)
CMYK	cmyk(38.6%, 90.9%, 0%, 82.7%)
CIE-LAB	lab(4.53, 19.20, -20.90)
CIE-LCH	lch(4.53, 28.38, 312.57°)
OKLab	oklab(18.12% 0.0471 -0.0627)
OKLCH	oklch(18.12% 0.078 306.9)
XYZ	xyz(0.9499, 0.5017, 2.4292)
Luminance	0.0050 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.37

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B042C #152C04

analogous

#07042C #1B042C #2C0429

triadic

#1B042C #2C1B04 #042C1B

tetradic

#1B042C #2C0704 #152C04 #04292C

square

#1B042C #2C0704 #152C04 #04292C

split-complementary

#1B042C #292C04 #042C07

monochromatic

#11031C #11031C #1B042C #3D0964 #600E9C

Accessibility & contrast

On white

19.08

#1B042C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#1B042C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B042C

19.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B042C	#FFFFFF	#000000	##FFFFFF
##1B042C	1.00	19.08	1.10	19.08
#FFFFFF	19.08	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F2D

Deuteranopia (green-blind)

#00102B

Tritanopia (blue-blind)

#180D17

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #1b042c;
/* rgb */ color: rgb(27, 4, 44);
/* oklch */ color: oklch(18.1% 0.078 306.9);

Tailwind

colors: {
  custom: {
    50: '#584865',
    500: '#1b042c',
    950: '#000000',
  },
}

SCSS

$custom: #1b042c;
$custom-light: #584865;
$custom-dark: #000000;

JSON

{
  "hex": "#1b042c",
  "rgb": {
    "r": 27,
    "g": 4,
    "b": 44
  },
  "hsl": {
    "h": 274.5,
    "s": 83.333,
    "l": 9.412
  },
  "oklch": {
    "l": 0.18118,
    "c": 0.07843,
    "h": 306.9
  },
  "luminance": 0.00502
}

Semantic roles & 50–950 ramp

primary

#1B042C

secondary

#406F1D

accent

#FA2E85

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#030005

muted

#78777A

Preview Lab

Preview with #1B042C

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

Preview Lab → · Contrast checker → · Palette generator →