#1B0540#1B0540

#1B0540 is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.5% C 0.101 H 292.0°. Best body text is #FFFFFF at 18.38:1 contrast (WCAG AA passes).

Color values

HEX	#1B0540
RGB	rgb(27, 5, 64)
HSL	hsl(262, 86%, 14%)
HSV	hsv(262, 92%, 25%)
CMYK	cmyk(57.8%, 92.2%, 0%, 74.9%)
CIE-LAB	lab(6.43, 26.80, -32.52)
CIE-LCH	lch(6.43, 42.14, 309.49°)
OKLab	oklab(20.5% 0.0381 -0.094)
OKLCH	oklch(20.5% 0.101 292)
XYZ	xyz(1.4314, 0.7117, 4.9114)
Luminance	0.0071 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0540 #2A4005

analogous

#050C40 #1B0540 #380540

triadic

#1B0540 #401B05 #05401B

tetradic

#1B0540 #40050C #2A4005 #054038

square

#1B0540 #40050C #2A4005 #054038

split-complementary

#1B0540 #403805 #0C4005

monochromatic

#0C021C #0C021C #1B0540 #330979 #4B0EB2

Accessibility & contrast

On white

18.38

#1B0540 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#1B0540 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0540

18.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0540	#FFFFFF	#000000	##FFFFFF
##1B0540	1.00	18.38	1.14	18.38
#FFFFFF	18.38	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001542

Deuteranopia (green-blind)

#00133F

Tritanopia (blue-blind)

#0E1623

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #1b0540;
/* rgb */ color: rgb(27, 5, 64);
/* oklch */ color: oklch(20.5% 0.101 292.0);

Tailwind

colors: {
  custom: {
    50: '#5d4875',
    500: '#1b0540',
    950: '#000000',
  },
}

SCSS

$custom: #1b0540;
$custom-light: #5d4875;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0540",
  "rgb": {
    "r": 27,
    "g": 5,
    "b": 64
  },
  "hsl": {
    "h": 262.373,
    "s": 85.507,
    "l": 13.529
  },
  "oklch": {
    "l": 0.20495,
    "c": 0.10144,
    "h": 292
  },
  "luminance": 0.00712
}

Semantic roles & 50–950 ramp

primary

#1B0540

secondary

#5D8120

accent

#FC2CAE

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#040008

muted

#79777B

Preview Lab

Preview with #1B0540

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

Preview Lab → · Contrast checker → · Palette generator →