#1B0F53#1B0F53

#1B0F53 is a very dark, moderate violet. Relative luminance 0.012; OKLCH L 24.1% C 0.115 H 281.5°. Best body text is #FFFFFF at 16.94:1 contrast (WCAG AA passes).

Color values

HEX	#1B0F53
RGB	rgb(27, 15, 83)
HSL	hsl(251, 69%, 19%)
HSV	hsv(251, 82%, 33%)
CMYK	cmyk(67.5%, 81.9%, 0%, 67.5%)
CIE-LAB	lab(10.55, 27.70, -39.02)
CIE-LCH	lch(10.55, 47.85, 305.37°)
OKLab	oklab(24.11% 0.023 -0.1125)
OKLCH	oklch(24.11% 0.115 281.5)
XYZ	xyz(2.1837, 1.1990, 8.2983)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0F53 #47530F

analogous

#0F2553 #1B0F53 #3D0F53

triadic

#1B0F53 #531B0F #0F531B

tetradic

#1B0F53 #530F25 #47530F #0F533D

square

#1B0F53 #530F25 #47530F #0F533D

split-complementary

#1B0F53 #533D0F #25530F

monochromatic

#08051A #0A061F #1B0F53 #2C1887 #3D22BB

Accessibility & contrast

On white

16.94

#1B0F53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#1B0F53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0F53

16.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0F53	#FFFFFF	#000000	##FFFFFF
##1B0F53	1.00	16.94	1.24	16.94
#FFFFFF	16.94	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F55

Deuteranopia (green-blind)

#001A52

Tritanopia (blue-blind)

#002230

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #1b0f53;
/* rgb */ color: rgb(27, 15, 83);
/* oklch */ color: oklch(24.1% 0.115 281.5);

Tailwind

colors: {
  custom: {
    50: '#604f84',
    500: '#1b0f53',
    950: '#000000',
  },
}

SCSS

$custom: #1b0f53;
$custom-light: #604f84;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0f53",
  "rgb": {
    "r": 27,
    "g": 15,
    "b": 83
  },
  "hsl": {
    "h": 250.588,
    "s": 69.388,
    "l": 19.216
  },
  "oklch": {
    "l": 0.24111,
    "c": 0.11487,
    "h": 281.5
  },
  "luminance": 0.01199
}

Semantic roles & 50–950 ramp

primary

#1B0F53

secondary

#7D8D31

accent

#EC3CCD

background

#F6F4F8

surface

#EBE7EF

border

#C6C3CA

text

#05020B

muted

#7A787C

Preview Lab

Preview with #1B0F53

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

Preview Lab → · Contrast checker → · Palette generator →