#1B0439#1B0439

#1B0439 is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.5% C 0.094 H 296.6°. Best body text is #FFFFFF at 18.70:1 contrast (WCAG AA passes).

Color values

HEX	#1B0439
RGB	rgb(27, 4, 57)
HSL	hsl(266, 87%, 12%)
HSV	hsv(266, 93%, 22%)
CMYK	cmyk(52.6%, 93%, 0%, 77.6%)
CIE-LAB	lab(5.56, 24.59, -28.89)
CIE-LCH	lch(5.56, 37.94, 310.40°)
OKLab	oklab(19.52% 0.0423 -0.0843)
OKLCH	oklch(19.52% 0.094 296.6)
XYZ	xyz(1.2337, 0.6152, 3.9238)
Luminance	0.0062 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0439 #223904

analogous

#040739 #1B0439 #360439

triadic

#1B0439 #391B04 #04391B

tetradic

#1B0439 #390407 #223904 #043936

square

#1B0439 #390407 #223904 #043936

split-complementary

#1B0439 #393604 #073904

monochromatic

#0E021D #0E021D #1B0439 #360872 #510CAB

Accessibility & contrast

On white

18.70

#1B0439 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#1B0439 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0439

18.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0439	#FFFFFF	#000000	##FFFFFF
##1B0439	1.00	18.70	1.12	18.70
#FFFFFF	18.70	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00123A

Deuteranopia (green-blind)

#001238

Tritanopia (blue-blind)

#13131E

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #1b0439;
/* rgb */ color: rgb(27, 4, 57);
/* oklch */ color: oklch(19.5% 0.094 296.6);

Tailwind

colors: {
  custom: {
    50: '#5b4770',
    500: '#1b0439',
    950: '#000000',
  },
}

SCSS

$custom: #1b0439;
$custom-light: #5b4770;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0439",
  "rgb": {
    "r": 27,
    "g": 4,
    "b": 57
  },
  "hsl": {
    "h": 266.038,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.1952,
    "c": 0.09433,
    "h": 296.6
  },
  "luminance": 0.00615
}

Semantic roles & 50–950 ramp

primary

#1B0439

secondary

#537B1E

accent

#FD2BA2

background

#F5F4F6

surface

#E9E6EC

border

#C5C2C7

text

#040007

muted

#79777A

Preview Lab

Preview with #1B0439

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

Preview Lab → · Contrast checker → · Palette generator →