#100841#100841

#100841 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.9% C 0.100 H 278.6°. Best body text is #FFFFFF at 18.53:1 contrast (WCAG AA passes).

Color values

HEX	#100841
RGB	rgb(16, 8, 65)
HSL	hsl(248, 78%, 14%)
HSV	hsv(248, 88%, 25%)
CMYK	cmyk(75.4%, 87.7%, 0%, 74.5%)
CIE-LAB	lab(6.01, 23.28, -33.97)
CIE-LCH	lch(6.01, 41.18, 304.43°)
OKLab	oklab(19.88% 0.0149 -0.0991)
OKLCH	oklch(19.88% 0.1 278.6)
XYZ	xyz(1.2543, 0.6654, 5.0623)
Luminance	0.0066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 2.69

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100841 #394108

analogous

#081D41 #100841 #2D0841

triadic

#100841 #411008 #084110

tetradic

#100841 #41081D #394108 #08412D

square

#100841 #41081D #394108 #08412D

split-complementary

#100841 #412D08 #1D4108

monochromatic

#07031B #07031B #100841 #1D0F77 #2B15AE

Accessibility & contrast

On white

18.53

#100841 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#100841 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100841

18.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100841	#FFFFFF	#000000	##FFFFFF
##100841	1.00	18.53	1.13	18.53
#FFFFFF	18.53	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001543

Deuteranopia (green-blind)

#001140

Tritanopia (blue-blind)

#001924

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #100841;
/* rgb */ color: rgb(16, 8, 65);
/* oklch */ color: oklch(19.9% 0.100 278.6);

Tailwind

colors: {
  custom: {
    50: '#574976',
    500: '#100841',
    950: '#000000',
  },
}

SCSS

$custom: #100841;
$custom-light: #574976;
$custom-dark: #000000;

JSON

{
  "hex": "#100841",
  "rgb": {
    "r": 16,
    "g": 8,
    "b": 65
  },
  "hsl": {
    "h": 248.421,
    "s": 78.082,
    "l": 14.314
  },
  "oklch": {
    "l": 0.19875,
    "c": 0.10019,
    "h": 278.6
  },
  "luminance": 0.00665
}

Semantic roles & 50–950 ramp

primary

#100841

secondary

#737F25

accent

#F533D9

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100841

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

Preview Lab → · Contrast checker → · Palette generator →