#1B043F#1B043F

#1B043F is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.2% C 0.102 H 292.9°. Best body text is #FFFFFF at 18.49:1 contrast (WCAG AA passes).

Color values

HEX	#1B043F
RGB	rgb(27, 4, 63)
HSL	hsl(263, 88%, 13%)
HSV	hsv(263, 94%, 25%)
CMYK	cmyk(57.1%, 93.7%, 0%, 75.3%)
CIE-LAB	lab(6.13, 26.95, -32.30)
CIE-LCH	lch(6.13, 42.06, 309.85°)
OKLab	oklab(20.22% 0.0396 -0.0936)
OKLCH	oklch(20.22% 0.102 292.9)
XYZ	xyz(1.3924, 0.6787, 4.7593)
Luminance	0.0068 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B043F #283F04

analogous

#040A3F #1B043F #38043F

triadic

#1B043F #3F1B04 #043F1B

tetradic

#1B043F #3F040A #283F04 #043F38

square

#1B043F #3F040A #283F04 #043F38

split-complementary

#1B043F #3F3804 #0A3F04

monochromatic

#0C021D #0C021D #1B043F #340879 #4C0BB2

Accessibility & contrast

On white

18.49

#1B043F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#1B043F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B043F

18.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B043F	#FFFFFF	#000000	##FFFFFF
##1B043F	1.00	18.49	1.14	18.49
#FFFFFF	18.49	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001441

Deuteranopia (green-blind)

#00123E

Tritanopia (blue-blind)

#0F1522

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #1b043f;
/* rgb */ color: rgb(27, 4, 63);
/* oklch */ color: oklch(20.2% 0.102 292.9);

Tailwind

colors: {
  custom: {
    50: '#5d4775',
    500: '#1b043f',
    950: '#000000',
  },
}

SCSS

$custom: #1b043f;
$custom-light: #5d4775;
$custom-dark: #000000;

JSON

{
  "hex": "#1b043f",
  "rgb": {
    "r": 27,
    "g": 4,
    "b": 63
  },
  "hsl": {
    "h": 263.39,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.20219,
    "c": 0.10164,
    "h": 292.9
  },
  "luminance": 0.00679
}

Semantic roles & 50–950 ramp

primary

#1B043F

secondary

#5A801E

accent

#FE2AAB

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#040008

muted

#79777B

Preview Lab

Preview with #1B043F

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

Preview Lab → · Contrast checker → · Palette generator →