#1B0128#1B0128

#1B0128 is a very dark, moderate purple. Relative luminance 0.004; OKLCH L 17.1% C 0.081 H 312.3°. Best body text is #FFFFFF at 19.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B0128
RGB	rgb(27, 1, 40)
HSL	hsl(280, 95%, 8%)
HSV	hsv(280, 98%, 16%)
CMYK	cmyk(32.5%, 97.5%, 0%, 84.3%)
CIE-LAB	lab(3.68, 18.77, -19.19)
CIE-LCH	lch(3.68, 26.84, 314.36°)
OKLab	oklab(17.07% 0.0546 -0.0601)
OKLCH	oklch(17.07% 0.081 312.3)
XYZ	xyz(0.8458, 0.4079, 2.0413)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0128 #0E2801

analogous

#070128 #1B0128 #280121

triadic

#1B0128 #281B01 #01281B

tetradic

#1B0128 #280701 #0E2801 #012128

square

#1B0128 #280701 #0E2801 #012128

split-complementary

#1B0128 #212801 #012807

monochromatic

#14011E #14011E #1B0128 #430264 #6C049F

Accessibility & contrast

On white

19.42

#1B0128 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#1B0128 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0128

19.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0128	#FFFFFF	#000000	##FFFFFF
##1B0128	1.00	19.42	1.08	19.42
#FFFFFF	19.42	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C29

Deuteranopia (green-blind)

#000E27

Tritanopia (blue-blind)

#190813

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #1b0128;
/* rgb */ color: rgb(27, 1, 40);
/* oklch */ color: oklch(17.1% 0.081 312.3);

Tailwind

colors: {
  custom: {
    50: '#574662',
    500: '#1b0128',
    950: '#000000',
  },
}

SCSS

$custom: #1b0128;
$custom-light: #574662;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0128",
  "rgb": {
    "r": 27,
    "g": 1,
    "b": 40
  },
  "hsl": {
    "h": 280,
    "s": 95.122,
    "l": 8.039
  },
  "oklch": {
    "l": 0.17071,
    "c": 0.08118,
    "h": 312.3
  },
  "luminance": 0.00408
}

Semantic roles & 50–950 ramp

primary

#1B0128

secondary

#346F16

accent

#FF2970

background

#F5F3F5

surface

#E9E5EA

border

#C5C1C6

text

#030005

muted

#787779

Preview Lab

Preview with #1B0128

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

Preview Lab → · Contrast checker → · Palette generator →