#100B2F#100B2F

#100B2F is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.3% C 0.069 H 283.6°. Best body text is #FFFFFF at 18.90:1 contrast (WCAG AA passes).

Color values

HEX	#100B2F
RGB	rgb(16, 11, 47)
HSL	hsl(248, 62%, 11%)
HSV	hsv(248, 77%, 18%)
CMYK	cmyk(66%, 76.6%, 0%, 81.6%)
CIE-LAB	lab(5.01, 13.07, -22.46)
CIE-LCH	lch(5.01, 25.99, 300.19°)
OKLab	oklab(18.34% 0.0162 -0.0669)
OKLCH	oklch(18.34% 0.069 283.6)
XYZ	xyz(0.8463, 0.5547, 2.7512)
Luminance	0.0056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B2F #2A2F0B

analogous

#0B182F #100B2F #220B2F

triadic

#100B2F #2F100B #0B2F10

tetradic

#100B2F #2F0B18 #2A2F0B #0B2F22

square

#100B2F #2F0B18 #2A2F0B #0B2F22

split-complementary

#100B2F #2F220B #182F0B

monochromatic

#080619 #080619 #100B2F #211761 #322292

Accessibility & contrast

On white

18.90

#100B2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100B2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B2F

18.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B2F	#FFFFFF	#000000	##FFFFFF
##100B2F	1.00	18.90	1.11	18.90
#FFFFFF	18.90	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001230

Deuteranopia (green-blind)

#00102E

Tritanopia (blue-blind)

#04141B

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #100b2f;
/* rgb */ color: rgb(16, 11, 47);
/* oklch */ color: oklch(18.3% 0.069 283.6);

Tailwind

colors: {
  custom: {
    50: '#514b68',
    500: '#100b2f',
    950: '#000000',
  },
}

SCSS

$custom: #100b2f;
$custom-light: #514b68;
$custom-dark: #000000;

JSON

{
  "hex": "#100b2f",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 47
  },
  "hsl": {
    "h": 248.333,
    "s": 62.069,
    "l": 11.373
  },
  "oklch": {
    "l": 0.18338,
    "c": 0.06878,
    "h": 283.6
  },
  "luminance": 0.00555
}

Semantic roles & 50–950 ramp

primary

#100B2F

secondary

#626B2A

accent

#E543CF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #100B2F

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

Preview Lab → · Contrast checker → · Palette generator →