#100B2E#100B2E

#100B2E is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.2% C 0.067 H 284.0°. Best body text is #FFFFFF at 18.93:1 contrast (WCAG AA passes).

Color values

HEX	#100B2E
RGB	rgb(16, 11, 46)
HSL	hsl(249, 61%, 11%)
HSV	hsv(249, 76%, 18%)
CMYK	cmyk(65.2%, 76.1%, 0%, 82%)
CIE-LAB	lab(4.94, 12.57, -21.83)
CIE-LCH	lch(4.94, 25.19, 299.93°)
OKLab	oklab(18.24% 0.0163 -0.0651)
OKLCH	oklch(18.24% 0.067 284)
XYZ	xyz(0.8264, 0.5467, 2.6462)
Luminance	0.0055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B2E #292E0B

analogous

#0B172E #100B2E #210B2E

triadic

#100B2E #2E100B #0B2E10

tetradic

#100B2E #2E0B17 #292E0B #0B2E21

square

#100B2E #2E0B17 #292E0B #0B2E21

split-complementary

#100B2E #2E210B #172E0B

monochromatic

#090619 #090619 #100B2E #21175F #322391

Accessibility & contrast

On white

18.93

#100B2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100B2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B2E

18.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B2E	#FFFFFF	#000000	##FFFFFF
##100B2E	1.00	18.93	1.11	18.93
#FFFFFF	18.93	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00122F

Deuteranopia (green-blind)

#00102D

Tritanopia (blue-blind)

#04131A

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #100b2e;
/* rgb */ color: rgb(16, 11, 46);
/* oklch */ color: oklch(18.2% 0.067 284.0);

Tailwind

colors: {
  custom: {
    50: '#514b67',
    500: '#100b2e',
    950: '#000000',
  },
}

SCSS

$custom: #100b2e;
$custom-light: #514b67;
$custom-dark: #000000;

JSON

{
  "hex": "#100b2e",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 46
  },
  "hsl": {
    "h": 248.571,
    "s": 61.404,
    "l": 11.176
  },
  "oklch": {
    "l": 0.18235,
    "c": 0.06713,
    "h": 284
  },
  "luminance": 0.00547
}

Semantic roles & 50–950 ramp

primary

#100B2E

secondary

#616A2A

accent

#E543CD

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #100B2E

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

Preview Lab → · Contrast checker → · Palette generator →