#1B022F#1B022F

#1B022F is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.0% C 0.086 H 305.1°. Best body text is #FFFFFF at 19.15:1 contrast (WCAG AA passes).

Color values

HEX	#1B022F
RGB	rgb(27, 2, 47)
HSL	hsl(273, 92%, 10%)
HSV	hsv(273, 96%, 18%)
CMYK	cmyk(42.6%, 95.7%, 0%, 81.6%)
CIE-LAB	lab(4.35, 21.35, -23.45)
CIE-LCH	lch(4.35, 31.71, 312.32°)
OKLab	oklab(18.03% 0.0497 -0.0706)
OKLCH	oklch(18.03% 0.086 305.1)
XYZ	xyz(0.9867, 0.4817, 2.7298)
Luminance	0.0048 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B022F #162F02

analogous

#04022F #1B022F #2F022D

triadic

#1B022F #2F1B02 #022F1B

tetradic

#1B022F #2F0402 #162F02 #022D2F

square

#1B022F #2F0402 #162F02 #022D2F

split-complementary

#1B022F #2D2F02 #022F04

monochromatic

#11011D #11011D #1B022F #3D046A #5E07A4

Accessibility & contrast

On white

19.15

#1B022F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#1B022F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B022F

19.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B022F	#FFFFFF	#000000	##FFFFFF
##1B022F	1.00	19.15	1.10	19.15
#FFFFFF	19.15	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E30

Deuteranopia (green-blind)

#000F2E

Tritanopia (blue-blind)

#170D18

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #1b022f;
/* rgb */ color: rgb(27, 2, 47);
/* oklch */ color: oklch(18.0% 0.086 305.1);

Tailwind

colors: {
  custom: {
    50: '#594768',
    500: '#1b022f',
    950: '#000000',
  },
}

SCSS

$custom: #1b022f;
$custom-light: #594768;
$custom-dark: #000000;

JSON

{
  "hex": "#1b022f",
  "rgb": {
    "r": 27,
    "g": 2,
    "b": 47
  },
  "hsl": {
    "h": 273.333,
    "s": 91.837,
    "l": 9.608
  },
  "oklch": {
    "l": 0.18029,
    "c": 0.08637,
    "h": 305.1
  },
  "luminance": 0.00482
}

Semantic roles & 50–950 ramp

primary

#1B022F

secondary

#417419

accent

#FF2988

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1B022F

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

Preview Lab → · Contrast checker → · Palette generator →