#18103B#18103B

#18103B is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.4% C 0.079 H 286.2°. Best body text is #FFFFFF at 17.85:1 contrast (WCAG AA passes).

Color values

HEX	#18103B
RGB	rgb(24, 16, 59)
HSL	hsl(251, 57%, 15%)
HSV	hsv(251, 73%, 23%)
CMYK	cmyk(59.3%, 72.9%, 0%, 76.9%)
CIE-LAB	lab(7.95, 17.88, -26.47)
CIE-LCH	lch(7.95, 31.94, 304.04°)
OKLab	oklab(21.41% 0.022 -0.0759)
OKLCH	oklch(21.41% 0.079 286.2)
XYZ	xyz(1.3512, 0.8805, 4.2356)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18103B #333B10

analogous

#101E3B #18103B #2E103B

triadic

#18103B #3B1810 #103B18

tetradic

#18103B #3B101E #333B10 #103B2E

square

#18103B #3B101E #333B10 #103B2E

split-complementary

#18103B #3B2E10 #1E3B10

monochromatic

#0A0718 #0A0718 #18103B #2C1D6B #3F2A9B

Accessibility & contrast

On white

17.85

#18103B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#18103B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18103B

17.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18103B	#FFFFFF	#000000	##FFFFFF
##18103B	1.00	17.85	1.18	17.85
#FFFFFF	17.85	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193C

Deuteranopia (green-blind)

#00163A

Tritanopia (blue-blind)

#0B1A23

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #18103b;
/* rgb */ color: rgb(24, 16, 59);
/* oklch */ color: oklch(21.4% 0.079 286.2);

Tailwind

colors: {
  custom: {
    50: '#594e71',
    500: '#18103b',
    950: '#000000',
  },
}

SCSS

$custom: #18103b;
$custom-light: #594e71;
$custom-dark: #000000;

JSON

{
  "hex": "#18103b",
  "rgb": {
    "r": 24,
    "g": 16,
    "b": 59
  },
  "hsl": {
    "h": 251.163,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.21406,
    "c": 0.07901,
    "h": 286.2
  },
  "luminance": 0.00881
}

Semantic roles & 50–950 ramp

primary

#18103B

secondary

#687532

accent

#E147C4

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040108

muted

#79777B

Preview Lab

Preview with #18103B

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

Preview Lab → · Contrast checker → · Palette generator →