#12104A#12104A

#12104A is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.5% C 0.103 H 275.7°. Best body text is #FFFFFF at 17.52:1 contrast (WCAG AA passes).

Color values

HEX	#12104A
RGB	rgb(18, 16, 74)
HSL	hsl(242, 64%, 18%)
HSV	hsv(242, 78%, 29%)
CMYK	cmyk(75.7%, 78.4%, 0%, 71%)
CIE-LAB	lab(8.94, 22.51, -35.49)
CIE-LCH	lch(8.94, 42.03, 302.38°)
OKLab	oklab(22.45% 0.0102 -0.1026)
OKLCH	oklch(22.45% 0.103 275.7)
XYZ	xyz(1.6704, 0.9934, 6.5810)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12104A #484A10

analogous

#102B4A #12104A #2F104A

triadic

#12104A #4A1210 #104A12

tetradic

#12104A #4A102B #484A10 #104A2F

square

#12104A #4A102B #484A10 #104A2F

split-complementary

#12104A #4A2F10 #2B4A10

monochromatic

#060519 #060519 #12104A #1E1B7C #2A26AF

Accessibility & contrast

On white

17.52

#12104A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#12104A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12104A

17.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12104A	#FFFFFF	#000000	##FFFFFF
##12104A	1.00	17.52	1.20	17.52
#FFFFFF	17.52	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C4C

Deuteranopia (green-blind)

#001749

Tritanopia (blue-blind)

#00202B

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #12104a;
/* rgb */ color: rgb(18, 16, 74);
/* oklch */ color: oklch(22.5% 0.103 275.7);

Tailwind

colors: {
  custom: {
    50: '#5a4e7d',
    500: '#12104a',
    950: '#000000',
  },
}

SCSS

$custom: #12104a;
$custom-light: #5a4e7d;
$custom-dark: #000000;

JSON

{
  "hex": "#12104a",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 74
  },
  "hsl": {
    "h": 242.069,
    "s": 64.444,
    "l": 17.647
  },
  "oklch": {
    "l": 0.22451,
    "c": 0.10307,
    "h": 275.7
  },
  "luminance": 0.00994
}

Semantic roles & 50–950 ramp

primary

#12104A

secondary

#818432

accent

#E740E2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #12104A

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

Preview Lab → · Contrast checker → · Palette generator →