#10104D#10104D

#10104D is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.7% C 0.108 H 273.6°. Best body text is #FFFFFF at 17.45:1 contrast (WCAG AA passes).

Color values

HEX	#10104D
RGB	rgb(16, 16, 77)
HSL	hsl(240, 66%, 18%)
HSV	hsv(240, 79%, 30%)
CMYK	cmyk(79.2%, 79.2%, 0%, 69.8%)
CIE-LAB	lab(9.13, 23.42, -37.27)
CIE-LCH	lch(9.13, 44.02, 302.15°)
OKLab	oklab(22.65% 0.0068 -0.1078)
OKLCH	oklch(22.65% 0.108 273.6)
XYZ	xyz(1.7381, 1.0164, 7.1243)
Luminance	0.0102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10104D #4D4D10

analogous

#102E4D #10104D #2E104D

triadic

#10104D #4D1010 #104D10

tetradic

#10104D #4D102E #4D4D10 #104D2E

square

#10104D #4D102E #4D4D10 #104D2E

split-complementary

#10104D #4D2E10 #2E4D10

monochromatic

#050519 #05051A #10104D #1B1B80 #2525B2

Accessibility & contrast

On white

17.45

#10104D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#10104D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10104D

17.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10104D	#FFFFFF	#000000	##FFFFFF
##10104D	1.00	17.45	1.20	17.45
#FFFFFF	17.45	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D4F

Deuteranopia (green-blind)

#00174C

Tritanopia (blue-blind)

#00212D

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #10104d;
/* rgb */ color: rgb(16, 16, 77);
/* oklch */ color: oklch(22.7% 0.108 273.6);

Tailwind

colors: {
  custom: {
    50: '#5a4e80',
    500: '#10104d',
    950: '#000000',
  },
}

SCSS

$custom: #10104d;
$custom-light: #5a4e80;
$custom-dark: #000000;

JSON

{
  "hex": "#10104d",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 77
  },
  "hsl": {
    "h": 240,
    "s": 65.591,
    "l": 18.235
  },
  "oklch": {
    "l": 0.2265,
    "c": 0.108,
    "h": 273.6
  },
  "luminance": 0.01017
}

Semantic roles & 50–950 ramp

primary

#10104D

secondary

#878732

accent

#E93FE9

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #10104D

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

Preview Lab → · Contrast checker → · Palette generator →