#100B2C#100B2C

#100B2C is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.0% C 0.064 H 284.9°. Best body text is #FFFFFF at 18.98:1 contrast (WCAG AA passes).

Color values

HEX	#100B2C
RGB	rgb(16, 11, 44)
HSL	hsl(249, 60%, 11%)
HSV	hsv(249, 75%, 17%)
CMYK	cmyk(63.6%, 75%, 0%, 82.7%)
CIE-LAB	lab(4.80, 11.59, -20.55)
CIE-LCH	lch(4.80, 23.59, 299.41°)
OKLab	oklab(18.03% 0.0165 -0.0616)
OKLCH	oklch(18.03% 0.064 284.9)
XYZ	xyz(0.7878, 0.5313, 2.4434)
Luminance	0.0053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B2C #272C0B

analogous

#0B162C #100B2C #200B2C

triadic

#100B2C #2C100B #0B2C10

tetradic

#100B2C #2C0B16 #272C0B #0B2C20

square

#100B2C #2C0B16 #272C0B #0B2C20

split-complementary

#100B2C #2C200B #162C0B

monochromatic

#090618 #090618 #100B2C #22175D #34238E

Accessibility & contrast

On white

18.98

#100B2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100B2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B2C

18.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B2C	#FFFFFF	#000000	##FFFFFF
##100B2C	1.00	18.98	1.11	18.98
#FFFFFF	18.98	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00112D

Deuteranopia (green-blind)

#000F2B

Tritanopia (blue-blind)

#061319

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #100b2c;
/* rgb */ color: rgb(16, 11, 44);
/* oklch */ color: oklch(18.0% 0.064 284.9);

Tailwind

colors: {
  custom: {
    50: '#504b65',
    500: '#100b2c',
    950: '#000000',
  },
}

SCSS

$custom: #100b2c;
$custom-light: #504b65;
$custom-dark: #000000;

JSON

{
  "hex": "#100b2c",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 44
  },
  "hsl": {
    "h": 249.091,
    "s": 60,
    "l": 10.784
  },
  "oklch": {
    "l": 0.18033,
    "c": 0.06381,
    "h": 284.9
  },
  "luminance": 0.00531
}

Semantic roles & 50–950 ramp

primary

#100B2C

secondary

#5F682B

accent

#E345CB

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020105

muted

#78777A

Preview Lab

Preview with #100B2C

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

Preview Lab → · Contrast checker → · Palette generator →