#100440#100440

#100440 is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.1% C 0.104 H 280.1°. Best body text is #FFFFFF at 18.86:1 contrast (WCAG AA passes).

Color values

HEX	#100440
RGB	rgb(16, 4, 64)
HSL	hsl(252, 88%, 13%)
HSV	hsv(252, 94%, 25%)
CMYK	cmyk(75%, 93.8%, 0%, 74.9%)
CIE-LAB	lab(5.12, 24.80, -34.70)
CIE-LCH	lch(5.12, 42.66, 305.55°)
OKLab	oklab(19.05% 0.0183 -0.1023)
OKLCH	oklch(19.05% 0.104 280.1)
XYZ	xyz(1.1822, 0.5671, 4.8966)
Luminance	0.0057 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100440 #344004

analogous

#041640 #100440 #2E0440

triadic

#100440 #401004 #044010

tetradic

#100440 #400416 #344004 #04402E

square

#100440 #400416 #344004 #04402E

split-complementary

#100440 #402E04 #164004

monochromatic

#07021D #07021D #100440 #1E087A #2D0BB3

Accessibility & contrast

On white

18.86

#100440 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100440 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100440

18.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100440	#FFFFFF	#000000	##FFFFFF
##100440	1.00	18.86	1.11	18.86
#FFFFFF	18.86	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001342

Deuteranopia (green-blind)

#000F3F

Tritanopia (blue-blind)

#001623

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #100440;
/* rgb */ color: rgb(16, 4, 64);
/* oklch */ color: oklch(19.1% 0.104 280.1);

Tailwind

colors: {
  custom: {
    50: '#574776',
    500: '#100440',
    950: '#000000',
  },
}

SCSS

$custom: #100440;
$custom-light: #574776;
$custom-dark: #000000;

JSON

{
  "hex": "#100440",
  "rgb": {
    "r": 16,
    "g": 4,
    "b": 64
  },
  "hsl": {
    "h": 252,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.19054,
    "c": 0.10397,
    "h": 280.1
  },
  "luminance": 0.00567
}

Semantic roles & 50–950 ramp

primary

#100440

secondary

#6E811F

accent

#FE29D4

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #100440

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

Preview Lab → · Contrast checker → · Palette generator →