#100B2D#100B2D

#100B2D is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.1% C 0.065 H 284.5°. Best body text is #FFFFFF at 18.96:1 contrast (WCAG AA passes).

Color values

HEX	#100B2D
RGB	rgb(16, 11, 45)
HSL	hsl(249, 61%, 11%)
HSV	hsv(249, 76%, 18%)
CMYK	cmyk(64.4%, 75.6%, 0%, 82.4%)
CIE-LAB	lab(4.87, 12.07, -21.19)
CIE-LCH	lch(4.87, 24.39, 299.66°)
OKLab	oklab(18.13% 0.0164 -0.0634)
OKLCH	oklch(18.13% 0.065 284.5)
XYZ	xyz(0.8069, 0.5389, 2.5436)
Luminance	0.0054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B2D #282D0B

analogous

#0B172D #100B2D #210B2D

triadic

#100B2D #2D100B #0B2D10

tetradic

#100B2D #2D0B17 #282D0B #0B2D21

square

#100B2D #2D0B17 #282D0B #0B2D21

split-complementary

#100B2D #2D210B #172D0B

monochromatic

#090619 #090619 #100B2D #21175E #33238F

Accessibility & contrast

On white

18.96

#100B2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100B2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B2D

18.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B2D	#FFFFFF	#000000	##FFFFFF
##100B2D	1.00	18.96	1.11	18.96
#FFFFFF	18.96	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00122E

Deuteranopia (green-blind)

#000F2C

Tritanopia (blue-blind)

#05131A

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #100b2d;
/* rgb */ color: rgb(16, 11, 45);
/* oklch */ color: oklch(18.1% 0.065 284.5);

Tailwind

colors: {
  custom: {
    50: '#504b66',
    500: '#100b2d',
    950: '#000000',
  },
}

SCSS

$custom: #100b2d;
$custom-light: #504b66;
$custom-dark: #000000;

JSON

{
  "hex": "#100b2d",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 45
  },
  "hsl": {
    "h": 248.824,
    "s": 60.714,
    "l": 10.98
  },
  "oklch": {
    "l": 0.18133,
    "c": 0.06548,
    "h": 284.5
  },
  "luminance": 0.00539
}

Semantic roles & 50–950 ramp

primary

#100B2D

secondary

#60692A

accent

#E444CC

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #100B2D

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

Preview Lab → · Contrast checker → · Palette generator →