#1B0C53#1B0C53

#1B0C53 is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.7% C 0.118 H 282.3°. Best body text is #FFFFFF at 17.16:1 contrast (WCAG AA passes).

Color values

HEX	#1B0C53
RGB	rgb(27, 12, 83)
HSL	hsl(253, 75%, 19%)
HSV	hsv(253, 86%, 33%)
CMYK	cmyk(67.5%, 85.5%, 0%, 67.5%)
CIE-LAB	lab(9.96, 29.40, -40.00)
CIE-LCH	lch(9.96, 49.64, 306.32°)
OKLab	oklab(23.7% 0.0251 -0.1154)
OKLCH	oklch(23.7% 0.118 282.3)
XYZ	xyz(2.1443, 1.1203, 8.2852)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0C53 #44530C

analogous

#0C2053 #1B0C53 #3E0C53

triadic

#1B0C53 #531B0C #0C531B

tetradic

#1B0C53 #530C20 #44530C #0C533E

square

#1B0C53 #530C20 #44530C #0C533E

split-complementary

#1B0C53 #533E0C #20530C

monochromatic

#09041B #0A041E #1B0C53 #2C1488 #3E1BBE

Accessibility & contrast

On white

17.16

#1B0C53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#1B0C53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0C53

17.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0C53	#FFFFFF	#000000	##FFFFFF
##1B0C53	1.00	17.16	1.22	17.16
#FFFFFF	17.16	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E55

Deuteranopia (green-blind)

#001952

Tritanopia (blue-blind)

#00212F

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #1b0c53;
/* rgb */ color: rgb(27, 12, 83);
/* oklch */ color: oklch(23.7% 0.118 282.3);

Tailwind

colors: {
  custom: {
    50: '#614d84',
    500: '#1b0c53',
    950: '#000000',
  },
}

SCSS

$custom: #1b0c53;
$custom-light: #614d84;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0c53",
  "rgb": {
    "r": 27,
    "g": 12,
    "b": 83
  },
  "hsl": {
    "h": 252.676,
    "s": 74.737,
    "l": 18.627
  },
  "oklch": {
    "l": 0.23695,
    "c": 0.11807,
    "h": 282.3
  },
  "luminance": 0.0112
}

Semantic roles & 50–950 ramp

primary

#1B0C53

secondary

#7A8E2D

accent

#F136CA

background

#F6F4F8

surface

#EBE7EF

border

#C6C3CA

text

#05010B

muted

#7A777C

Preview Lab

Preview with #1B0C53

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

Preview Lab → · Contrast checker → · Palette generator →