#100A47#100A47

#100A47 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.9% C 0.106 H 276.4°. Best body text is #FFFFFF at 18.16:1 contrast (WCAG AA passes).

Color values

HEX	#100A47
RGB	rgb(16, 10, 71)
HSL	hsl(246, 75%, 16%)
HSV	hsv(246, 86%, 28%)
CMYK	cmyk(77.5%, 85.9%, 0%, 72.2%)
CIE-LAB	lab(7.06, 24.86, -36.49)
CIE-LCH	lch(7.06, 44.15, 304.26°)
OKLab	oklab(20.95% 0.0118 -0.1056)
OKLCH	oklch(20.95% 0.106 276.4)
XYZ	xyz(1.4592, 0.7820, 6.0341)
Luminance	0.0078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100A47 #41470A

analogous

#0A2247 #100A47 #2E0A47

triadic

#100A47 #47100A #0A4710

tetradic

#100A47 #470A22 #41470A #0A472E

square

#100A47 #470A22 #41470A #0A472E

split-complementary

#100A47 #472E0A #22470A

monochromatic

#06041B #06041B #100A47 #1C127D #2819B2

Accessibility & contrast

On white

18.16

#100A47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#100A47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100A47

18.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100A47	#FFFFFF	#000000	##FFFFFF
##100A47	1.00	18.16	1.16	18.16
#FFFFFF	18.16	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001849

Deuteranopia (green-blind)

#001346

Tritanopia (blue-blind)

#001C28

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #100a47;
/* rgb */ color: rgb(16, 10, 71);
/* oklch */ color: oklch(20.9% 0.106 276.4);

Tailwind

colors: {
  custom: {
    50: '#594a7b',
    500: '#100a47',
    950: '#000000',
  },
}

SCSS

$custom: #100a47;
$custom-light: #594a7b;
$custom-dark: #000000;

JSON

{
  "hex": "#100a47",
  "rgb": {
    "r": 16,
    "g": 10,
    "b": 71
  },
  "hsl": {
    "h": 245.902,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.20945,
    "c": 0.10631,
    "h": 276.4
  },
  "luminance": 0.00782
}

Semantic roles & 50–950 ramp

primary

#100A47

secondary

#7B8429

accent

#F236DF

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040109

muted

#79777B

Preview Lab

Preview with #100A47

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

Preview Lab → · Contrast checker → · Palette generator →