#1B0231#1B0231

#1B0231 is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.2% C 0.089 H 303.4°. Best body text is #FFFFFF at 19.10:1 contrast (WCAG AA passes).

Color values

HEX	#1B0231
RGB	rgb(27, 2, 49)
HSL	hsl(272, 92%, 10%)
HSV	hsv(272, 96%, 19%)
CMYK	cmyk(44.9%, 95.9%, 0%, 80.8%)
CIE-LAB	lab(4.50, 22.21, -24.70)
CIE-LCH	lch(4.50, 33.22, 311.95°)
OKLab	oklab(18.25% 0.0489 -0.0739)
OKLCH	oklch(18.25% 0.089 303.4)
XYZ	xyz(1.0279, 0.4982, 2.9471)
Luminance	0.0050 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0231 #183102

analogous

#040231 #1B0231 #31022F

triadic

#1B0231 #311B02 #02311B

tetradic

#1B0231 #310402 #183102 #022F31

square

#1B0231 #310402 #183102 #022F31

split-complementary

#1B0231 #2F3102 #023104

monochromatic

#10011D #10011D #1B0231 #3B046C #5C07A7

Accessibility & contrast

On white

19.10

#1B0231 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#1B0231 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0231

19.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0231	#FFFFFF	#000000	##FFFFFF
##1B0231	1.00	19.10	1.10	19.10
#FFFFFF	19.10	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F32

Deuteranopia (green-blind)

#000F30

Tritanopia (blue-blind)

#160E19

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #1b0231;
/* rgb */ color: rgb(27, 2, 49);
/* oklch */ color: oklch(18.2% 0.089 303.4);

Tailwind

colors: {
  custom: {
    50: '#594669',
    500: '#1b0231',
    950: '#000000',
  },
}

SCSS

$custom: #1b0231;
$custom-light: #594669;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0231",
  "rgb": {
    "r": 27,
    "g": 2,
    "b": 49
  },
  "hsl": {
    "h": 271.915,
    "s": 92.157,
    "l": 10
  },
  "oklch": {
    "l": 0.18249,
    "c": 0.08863,
    "h": 303.4
  },
  "luminance": 0.00498
}

Semantic roles & 50–950 ramp

primary

#1B0231

secondary

#447519

accent

#FF298D

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1B0231

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

Preview Lab → · Contrast checker → · Palette generator →