#1B0340#1B0340

#1B0340 is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.2% C 0.104 H 292.7°. Best body text is #FFFFFF at 18.53:1 contrast (WCAG AA passes).

Color values

HEX	#1B0340
RGB	rgb(27, 3, 64)
HSL	hsl(264, 91%, 13%)
HSV	hsv(264, 95%, 25%)
CMYK	cmyk(57.8%, 95.3%, 0%, 74.9%)
CIE-LAB	lab(6.04, 27.87, -33.17)
CIE-LCH	lch(6.04, 43.32, 310.04°)
OKLab	oklab(20.18% 0.0403 -0.0962)
OKLCH	oklch(20.18% 0.104 292.7)
XYZ	xyz(1.4097, 0.6682, 4.9042)
Luminance	0.0067 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.36

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0340 #284003

analogous

#030940 #1B0340 #390340

triadic

#1B0340 #401B03 #03401B

tetradic

#1B0340 #400309 #284003 #034039

square

#1B0340 #400309 #284003 #034039

split-complementary

#1B0340 #403903 #094003

monochromatic

#0C011D #0C011D #1B0340 #34067A #4C08B5

Accessibility & contrast

On white

18.53

#1B0340 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#1B0340 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0340

18.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0340	#FFFFFF	#000000	##FFFFFF
##1B0340	1.00	18.53	1.13	18.53
#FFFFFF	18.53	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001442

Deuteranopia (green-blind)

#00123F

Tritanopia (blue-blind)

#0E1522

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #1b0340;
/* rgb */ color: rgb(27, 3, 64);
/* oklch */ color: oklch(20.2% 0.104 292.7);

Tailwind

colors: {
  custom: {
    50: '#5d4776',
    500: '#1b0340',
    950: '#000000',
  },
}

SCSS

$custom: #1b0340;
$custom-light: #5d4776;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0340",
  "rgb": {
    "r": 27,
    "g": 3,
    "b": 64
  },
  "hsl": {
    "h": 263.607,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.20178,
    "c": 0.10432,
    "h": 292.7
  },
  "luminance": 0.00668
}

Semantic roles & 50–950 ramp

primary

#1B0340

secondary

#5A821D

accent

#FF29AB

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#050008

muted

#79777B

Preview Lab

Preview with #1B0340

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

Preview Lab → · Contrast checker → · Palette generator →