#100331#100331

#100331 is a very dark, moderate violet. Relative luminance 0.004; OKLCH L 16.9% C 0.086 H 287.6°. Best body text is #FFFFFF at 19.46:1 contrast (WCAG AA passes).

Color values

HEX	#100331
RGB	rgb(16, 3, 49)
HSL	hsl(257, 88%, 10%)
HSV	hsv(257, 94%, 19%)
CMYK	cmyk(67.3%, 93.9%, 0%, 80.8%)
CIE-LAB	lab(3.59, 17.33, -26.23)
CIE-LCH	lch(3.59, 31.44, 303.46°)
OKLab	oklab(16.87% 0.026 -0.0816)
OKLCH	oklch(16.87% 0.086 287.6)
XYZ	xyz(0.8005, 0.3970, 2.9396)
Luminance	0.0040 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100331 #243103

analogous

#030D31 #100331 #270331

triadic

#100331 #311003 #033110

tetradic

#100331 #31030D #243103 #033127

square

#100331 #31030D #243103 #033127

split-complementary

#100331 #312703 #0D3103

monochromatic

#09021D #09021D #100331 #23076B #360AA4

Accessibility & contrast

On white

19.46

#100331 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#100331 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100331

19.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100331	#FFFFFF	#000000	##FFFFFF
##100331	1.00	19.46	1.08	19.46
#FFFFFF	19.46	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E32

Deuteranopia (green-blind)

#000C30

Tritanopia (blue-blind)

#030F19

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #100331;
/* rgb */ color: rgb(16, 3, 49);
/* oklch */ color: oklch(16.9% 0.086 287.6);

Tailwind

colors: {
  custom: {
    50: '#514769',
    500: '#100331',
    950: '#000000',
  },
}

SCSS

$custom: #100331;
$custom-light: #514769;
$custom-dark: #000000;

JSON

{
  "hex": "#100331",
  "rgb": {
    "r": 16,
    "g": 3,
    "b": 49
  },
  "hsl": {
    "h": 256.957,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.16872,
    "c": 0.08559,
    "h": 287.6
  },
  "luminance": 0.00397
}

Semantic roles & 50–950 ramp

primary

#100331

secondary

#5B741B

accent

#FF29C2

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#020006

muted

#78777A

Preview Lab

Preview with #100331

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

Preview Lab → · Contrast checker → · Palette generator →