#1B0331#1B0331

#1B0331 is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.4% C 0.087 H 303.0°. Best body text is #FFFFFF at 19.02:1 contrast (WCAG AA passes).

Color values

HEX	#1B0331
RGB	rgb(27, 3, 49)
HSL	hsl(271, 88%, 10%)
HSV	hsv(271, 94%, 19%)
CMYK	cmyk(44.9%, 93.9%, 0%, 80.8%)
CIE-LAB	lab(4.70, 21.75, -24.39)
CIE-LCH	lch(4.70, 32.68, 311.73°)
OKLab	oklab(18.45% 0.0471 -0.0726)
OKLCH	oklch(18.45% 0.087 303)
XYZ	xyz(1.0388, 0.5199, 2.9508)
Luminance	0.0052 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0331 #193103

analogous

#040331 #1B0331 #310330

triadic

#1B0331 #311B03 #03311B

tetradic

#1B0331 #310403 #193103 #033031

square

#1B0331 #310403 #193103 #033031

split-complementary

#1B0331 #303103 #033104

monochromatic

#10021D #10021D #1B0331 #3B076B #5B0AA4

Accessibility & contrast

On white

19.02

#1B0331 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#1B0331 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0331

19.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0331	#FFFFFF	#000000	##FFFFFF
##1B0331	1.00	19.02	1.10	19.02
#FFFFFF	19.02	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001032

Deuteranopia (green-blind)

#001030

Tritanopia (blue-blind)

#160E19

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #1b0331;
/* rgb */ color: rgb(27, 3, 49);
/* oklch */ color: oklch(18.4% 0.087 303.0);

Tailwind

colors: {
  custom: {
    50: '#594769',
    500: '#1b0331',
    950: '#000000',
  },
}

SCSS

$custom: #1b0331;
$custom-light: #594769;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0331",
  "rgb": {
    "r": 27,
    "g": 3,
    "b": 49
  },
  "hsl": {
    "h": 271.304,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.18445,
    "c": 0.08655,
    "h": 303
  },
  "luminance": 0.0052
}

Semantic roles & 50–950 ramp

primary

#1B0331

secondary

#46741B

accent

#FF298F

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1B0331

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

Preview Lab → · Contrast checker → · Palette generator →