#1B0A45#1B0A45

#1B0A45 is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.8% C 0.102 H 288.0°. Best body text is #FFFFFF at 17.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B0A45
RGB	rgb(27, 10, 69)
HSL	hsl(257, 75%, 15%)
HSV	hsv(257, 86%, 27%)
CMYK	cmyk(60.9%, 85.5%, 0%, 72.9%)
CIE-LAB	lab(7.95, 25.84, -33.59)
CIE-LCH	lch(7.95, 42.38, 307.57°)
OKLab	oklab(21.8% 0.0313 -0.0966)
OKLCH	oklch(21.8% 0.102 288)
XYZ	xyz(1.6344, 0.8797, 5.7127)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0A45 #34450A

analogous

#0A1645 #1B0A45 #380A45

triadic

#1B0A45 #451B0A #0A451B

tetradic

#1B0A45 #450A16 #34450A #0A4538

square

#1B0A45 #450A16 #34450A #0A4538

split-complementary

#1B0A45 #45380A #16450A

monochromatic

#0A041B #0A041B #1B0A45 #30127A #4519B0

Accessibility & contrast

On white

17.86

#1B0A45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#1B0A45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0A45

17.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0A45	#FFFFFF	#000000	##FFFFFF
##1B0A45	1.00	17.86	1.18	17.86
#FFFFFF	17.86	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001947

Deuteranopia (green-blind)

#001644

Tritanopia (blue-blind)

#0A1B27

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #1b0a45;
/* rgb */ color: rgb(27, 10, 69);
/* oklch */ color: oklch(21.8% 0.102 288.0);

Tailwind

colors: {
  custom: {
    50: '#5d4b79',
    500: '#1b0a45',
    950: '#000000',
  },
}

SCSS

$custom: #1b0a45;
$custom-light: #5d4b79;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0a45",
  "rgb": {
    "r": 27,
    "g": 10,
    "b": 69
  },
  "hsl": {
    "h": 257.288,
    "s": 74.684,
    "l": 15.49
  },
  "oklch": {
    "l": 0.21804,
    "c": 0.10158,
    "h": 288
  },
  "luminance": 0.0088
}

Semantic roles & 50–950 ramp

primary

#1B0A45

secondary

#688229

accent

#F136BB

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#050109

muted

#79777B

Preview Lab

Preview with #1B0A45

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

Preview Lab → · Contrast checker → · Palette generator →