#1B0539#1B0539

#1B0539 is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.7% C 0.093 H 296.2°. Best body text is #FFFFFF at 18.63:1 contrast (WCAG AA passes).

Color values

HEX	#1B0539
RGB	rgb(27, 5, 57)
HSL	hsl(265, 84%, 12%)
HSV	hsv(265, 91%, 22%)
CMYK	cmyk(52.6%, 91.2%, 0%, 77.6%)
CIE-LAB	lab(5.75, 24.09, -28.58)
CIE-LCH	lch(5.75, 37.37, 310.13°)
OKLab	oklab(19.69% 0.041 -0.0831)
OKLCH	oklch(19.69% 0.093 296.2)
XYZ	xyz(1.2446, 0.6369, 3.9275)
Luminance	0.0064 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0539 #233905

analogous

#050939 #1B0539 #350539

triadic

#1B0539 #391B05 #05391B

tetradic

#1B0539 #390509 #233905 #053935

square

#1B0539 #390509 #233905 #053935

split-complementary

#1B0539 #393505 #093905

monochromatic

#0D021C #0D021C #1B0539 #360A71 #500FAA

Accessibility & contrast

On white

18.63

#1B0539 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#1B0539 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0539

18.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0539	#FFFFFF	#000000	##FFFFFF
##1B0539	1.00	18.63	1.13	18.63
#FFFFFF	18.63	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00133A

Deuteranopia (green-blind)

#001238

Tritanopia (blue-blind)

#13131F

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #1b0539;
/* rgb */ color: rgb(27, 5, 57);
/* oklch */ color: oklch(19.7% 0.093 296.2);

Tailwind

colors: {
  custom: {
    50: '#5b4870',
    500: '#1b0539',
    950: '#000000',
  },
}

SCSS

$custom: #1b0539;
$custom-light: #5b4870;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0539",
  "rgb": {
    "r": 27,
    "g": 5,
    "b": 57
  },
  "hsl": {
    "h": 265.385,
    "s": 83.871,
    "l": 12.157
  },
  "oklch": {
    "l": 0.19691,
    "c": 0.09269,
    "h": 296.2
  },
  "luminance": 0.00637
}

Semantic roles & 50–950 ramp

primary

#1B0539

secondary

#547A20

accent

#FA2EA4

background

#F5F4F6

surface

#E9E6EC

border

#C5C2C7

text

#040007

muted

#79777A

Preview Lab

Preview with #1B0539

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

Preview Lab → · Contrast checker → · Palette generator →