#1B0C5F#1B0C5F

#1B0C5F is a dark, vivid violet. Relative luminance 0.013; OKLCH L 25.1% C 0.134 H 279.0°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B0C5F
RGB	rgb(27, 12, 95)
HSL	hsl(251, 78%, 21%)
HSV	hsv(251, 87%, 37%)
CMYK	cmyk(71.6%, 87.4%, 0%, 62.7%)
CIE-LAB	lab(11.43, 33.36, -45.69)
CIE-LCH	lch(11.43, 56.57, 306.13°)
OKLab	oklab(25.15% 0.0209 -0.1319)
OKLCH	oklch(25.15% 0.134 279)
XYZ	xyz(2.6484, 1.3220, 10.9399)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0C5F #505F0C

analogous

#0C265F #1B0C5F #440C5F

triadic

#1B0C5F #5F1B0C #0C5F1B

tetradic

#1B0C5F #5F0C26 #505F0C #0C5F44

square

#1B0C5F #5F0C26 #505F0C #0C5F44

split-complementary

#1B0C5F #5F440C #265F0C

monochromatic

#08031B #0C0529 #1B0C5F #2A1395 #3A1ACC

Accessibility & contrast

On white

16.61

#1B0C5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#1B0C5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0C5F

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0C5F	#FFFFFF	#000000	##FFFFFF
##1B0C5F	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002161

Deuteranopia (green-blind)

#001B5E

Tritanopia (blue-blind)

#002636

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #1b0c5f;
/* rgb */ color: rgb(27, 12, 95);
/* oklch */ color: oklch(25.1% 0.134 279.0);

Tailwind

colors: {
  custom: {
    50: '#634e8d',
    500: '#1b0c5f',
    950: '#000000',
  },
}

SCSS

$custom: #1b0c5f;
$custom-light: #634e8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0c5f",
  "rgb": {
    "r": 27,
    "g": 12,
    "b": 95
  },
  "hsl": {
    "h": 250.843,
    "s": 77.57,
    "l": 20.98
  },
  "oklch": {
    "l": 0.25149,
    "c": 0.13359,
    "h": 279
  },
  "luminance": 0.01322
}

Semantic roles & 50–950 ramp

primary

#1B0C5F

secondary

#86992D

accent

#F434D1

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1B0C5F

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

Preview Lab → · Contrast checker → · Palette generator →