#1B0D5B#1B0D5B

#1B0D5B is a very dark, vivid violet. Relative luminance 0.013; OKLCH L 24.8% C 0.128 H 279.8°. Best body text is #FFFFFF at 16.73:1 contrast (WCAG AA passes).

Color values

HEX	#1B0D5B
RGB	rgb(27, 13, 91)
HSL	hsl(251, 75%, 20%)
HSV	hsv(251, 86%, 36%)
CMYK	cmyk(70.3%, 85.7%, 0%, 64.3%)
CIE-LAB	lab(11.11, 31.53, -43.53)
CIE-LCH	lch(11.11, 53.75, 305.92°)
OKLab	oklab(24.78% 0.0218 -0.1257)
OKLCH	oklch(24.78% 0.128 279.8)
XYZ	xyz(2.4836, 1.2760, 10.0109)
Luminance	0.0128 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0D5B #4D5B0D

analogous

#0D265B #1B0D5B #420D5B

triadic

#1B0D5B #5B1B0D #0D5B1B

tetradic

#1B0D5B #5B0D26 #4D5B0D #0D5B42

square

#1B0D5B #5B0D26 #4D5B0D #0D5B42

split-complementary

#1B0D5B #5B420D #265B0D

monochromatic

#08041B #0B0525 #1B0D5B #2B1591 #3B1CC6

Accessibility & contrast

On white

16.73

#1B0D5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#1B0D5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0D5B

16.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0D5B	#FFFFFF	#000000	##FFFFFF
##1B0D5B	1.00	16.73	1.26	16.73
#FFFFFF	16.73	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00205D

Deuteranopia (green-blind)

#001B5A

Tritanopia (blue-blind)

#002534

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #1b0d5b;
/* rgb */ color: rgb(27, 13, 91);
/* oklch */ color: oklch(24.8% 0.128 279.8);

Tailwind

colors: {
  custom: {
    50: '#624e8a',
    500: '#1b0d5b',
    950: '#000000',
  },
}

SCSS

$custom: #1b0d5b;
$custom-light: #624e8a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0d5b",
  "rgb": {
    "r": 27,
    "g": 13,
    "b": 91
  },
  "hsl": {
    "h": 250.769,
    "s": 75,
    "l": 20.392
  },
  "oklch": {
    "l": 0.24781,
    "c": 0.12755,
    "h": 279.8
  },
  "luminance": 0.01276
}

Semantic roles & 50–950 ramp

primary

#1B0D5B

secondary

#83952F

accent

#F236D0

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B0D5B

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

Preview Lab → · Contrast checker → · Palette generator →