#1B0D57#1B0D57

#1B0D57 is a very dark, vivid violet. Relative luminance 0.012; OKLCH L 24.3% C 0.122 H 280.9°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).

Color values

HEX	#1B0D57
RGB	rgb(27, 13, 87)
HSL	hsl(251, 74%, 20%)
HSV	hsv(251, 85%, 34%)
CMYK	cmyk(69%, 85.1%, 0%, 65.9%)
CIE-LAB	lab(10.62, 30.20, -41.63)
CIE-LCH	lch(10.62, 51.43, 305.96°)
OKLab	oklab(24.3% 0.0231 -0.1201)
OKLCH	oklch(24.3% 0.122 280.9)
XYZ	xyz(2.3157, 1.2088, 9.1263)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0D57 #49570D

analogous

#0D2457 #1B0D57 #400D57

triadic

#1B0D57 #571B0D #0D571B

tetradic

#1B0D57 #570D24 #49570D #0D5740

square

#1B0D57 #570D24 #49570D #0D5740

split-complementary

#1B0D57 #57400D #24570D

monochromatic

#08041B #0A0522 #1B0D57 #2C158C #3C1DC1

Accessibility & contrast

On white

16.91

#1B0D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#1B0D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0D57

16.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0D57	#FFFFFF	#000000	##FFFFFF
##1B0D57	1.00	16.91	1.24	16.91
#FFFFFF	16.91	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F59

Deuteranopia (green-blind)

#001A56

Tritanopia (blue-blind)

#002332

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #1b0d57;
/* rgb */ color: rgb(27, 13, 87);
/* oklch */ color: oklch(24.3% 0.122 280.9);

Tailwind

colors: {
  custom: {
    50: '#614e87',
    500: '#1b0d57',
    950: '#000000',
  },
}

SCSS

$custom: #1b0d57;
$custom-light: #614e87;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0d57",
  "rgb": {
    "r": 27,
    "g": 13,
    "b": 87
  },
  "hsl": {
    "h": 251.351,
    "s": 74,
    "l": 19.608
  },
  "oklch": {
    "l": 0.24301,
    "c": 0.12233,
    "h": 280.9
  },
  "luminance": 0.01209
}

Semantic roles & 50–950 ramp

primary

#1B0D57

secondary

#7F922E

accent

#F137CE

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020B

muted

#7A787C

Preview Lab

Preview with #1B0D57

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

Preview Lab → · Contrast checker → · Palette generator →