#12104C#12104C

#12104C is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.7% C 0.106 H 275.3°. Best body text is #FFFFFF at 17.44:1 contrast (WCAG AA passes).

Color values

HEX	#12104C
RGB	rgb(18, 16, 76)
HSL	hsl(242, 65%, 18%)
HSV	hsv(242, 79%, 30%)
CMYK	cmyk(76.3%, 78.9%, 0%, 70.2%)
CIE-LAB	lab(9.16, 23.28, -36.51)
CIE-LCH	lch(9.16, 43.30, 302.53°)
OKLab	oklab(22.68% 0.0098 -0.1055)
OKLCH	oklch(22.68% 0.106 275.3)
XYZ	xyz(1.7388, 1.0208, 6.9415)
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

#12104C #4A4C10

analogous

#102C4C #12104C #30104C

triadic

#12104C #4C1210 #104C12

tetradic

#12104C #4C102C #4A4C10 #104C30

square

#12104C #4C102C #4A4C10 #104C30

split-complementary

#12104C #4C3010 #2C4C10

monochromatic

#060519 #060519 #12104C #1E1B7F #2A25B1

Accessibility & contrast

On white

17.44

#12104C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#12104C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12104C

17.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12104C	#FFFFFF	#000000	##FFFFFF
##12104C	1.00	17.44	1.20	17.44
#FFFFFF	17.44	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C4E

Deuteranopia (green-blind)

#00174B

Tritanopia (blue-blind)

#00212C

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #12104c;
/* rgb */ color: rgb(18, 16, 76);
/* oklch */ color: oklch(22.7% 0.106 275.3);

Tailwind

colors: {
  custom: {
    50: '#5a4e7f',
    500: '#12104c',
    950: '#000000',
  },
}

SCSS

$custom: #12104c;
$custom-light: #5a4e7f;
$custom-dark: #000000;

JSON

{
  "hex": "#12104c",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 76
  },
  "hsl": {
    "h": 242,
    "s": 65.217,
    "l": 18.039
  },
  "oklch": {
    "l": 0.22681,
    "c": 0.10598,
    "h": 275.3
  },
  "luminance": 0.01021
}

Semantic roles & 50–950 ramp

primary

#12104C

secondary

#838632

accent

#E840E3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #12104C

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

Preview Lab → · Contrast checker → · Palette generator →