#1B0538#1B0538

#1B0538 is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.6% C 0.091 H 296.9°. Best body text is #FFFFFF at 18.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B0538
RGB	rgb(27, 5, 56)
HSL	hsl(266, 84%, 12%)
HSV	hsv(266, 91%, 22%)
CMYK	cmyk(51.8%, 91.1%, 0%, 78%)
CIE-LAB	lab(5.66, 23.68, -27.99)
CIE-LCH	lch(5.66, 36.67, 310.24°)
OKLab	oklab(19.58% 0.0413 -0.0816)
OKLCH	oklch(19.58% 0.091 296.9)
XYZ	xyz(1.2199, 0.6271, 3.7974)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0538 #223805

analogous

#050938 #1B0538 #350538

triadic

#1B0538 #381B05 #05381B

tetradic

#1B0538 #380509 #223805 #053835

square

#1B0538 #380509 #223805 #053835

split-complementary

#1B0538 #383505 #093805

monochromatic

#0E031C #0E031C #1B0538 #360A70 #510FA8

Accessibility & contrast

On white

18.66

#1B0538 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#1B0538 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0538

18.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0538	#FFFFFF	#000000	##FFFFFF
##1B0538	1.00	18.66	1.13	18.66
#FFFFFF	18.66	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001339

Deuteranopia (green-blind)

#001237

Tritanopia (blue-blind)

#13131E

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #1b0538;
/* rgb */ color: rgb(27, 5, 56);
/* oklch */ color: oklch(19.6% 0.091 296.9);

Tailwind

colors: {
  custom: {
    50: '#5b486f',
    500: '#1b0538',
    950: '#000000',
  },
}

SCSS

$custom: #1b0538;
$custom-light: #5b486f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0538",
  "rgb": {
    "r": 27,
    "g": 5,
    "b": 56
  },
  "hsl": {
    "h": 265.882,
    "s": 83.607,
    "l": 11.961
  },
  "oklch": {
    "l": 0.19579,
    "c": 0.09144,
    "h": 296.9
  },
  "luminance": 0.00627
}

Semantic roles & 50–950 ramp

primary

#1B0538

secondary

#537920

accent

#FA2EA2

background

#F5F4F6

surface

#E9E6EC

border

#C5C2C7

text

#040007

muted

#79777A

Preview Lab

Preview with #1B0538

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

Preview Lab → · Contrast checker → · Palette generator →