#12104F#12104F

#12104F is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.0% C 0.110 H 274.8°. Best body text is #FFFFFF at 17.32:1 contrast (WCAG AA passes).

Color values

HEX	#12104F
RGB	rgb(18, 16, 79)
HSL	hsl(242, 66%, 19%)
HSV	hsv(242, 80%, 31%)
CMYK	cmyk(77.2%, 79.7%, 0%, 69%)
CIE-LAB	lab(9.51, 24.44, -38.02)
CIE-LCH	lch(9.51, 45.19, 302.73°)
OKLab	oklab(23.03% 0.0092 -0.1099)
OKLCH	oklch(23.03% 0.11 274.8)
XYZ	xyz(1.8456, 1.0635, 7.5036)
Luminance	0.0106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.51

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12104F #4D4F10

analogous

#102D4F #12104F #31104F

triadic

#12104F #4F1210 #104F12

tetradic

#12104F #4F102D #4D4F10 #104F31

square

#12104F #4F102D #4D4F10 #104F31

split-complementary

#12104F #4F3110 #2D4F10

monochromatic

#060519 #06061C #12104F #1E1A82 #2925B5

Accessibility & contrast

On white

17.32

#12104F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#12104F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12104F

17.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12104F	#FFFFFF	#000000	##FFFFFF
##12104F	1.00	17.32	1.21	17.32
#FFFFFF	17.32	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D51

Deuteranopia (green-blind)

#00184E

Tritanopia (blue-blind)

#00222E

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #12104f;
/* rgb */ color: rgb(18, 16, 79);
/* oklch */ color: oklch(23.0% 0.110 274.8);

Tailwind

colors: {
  custom: {
    50: '#5b4f81',
    500: '#12104f',
    950: '#000000',
  },
}

SCSS

$custom: #12104f;
$custom-light: #5b4f81;
$custom-dark: #000000;

JSON

{
  "hex": "#12104f",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 79
  },
  "hsl": {
    "h": 241.905,
    "s": 66.316,
    "l": 18.627
  },
  "oklch": {
    "l": 0.23032,
    "c": 0.1103,
    "h": 274.8
  },
  "luminance": 0.01064
}

Semantic roles & 50–950 ramp

primary

#12104F

secondary

#868932

accent

#E93FE4

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020A

muted

#79787C

Preview Lab

Preview with #12104F

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

Preview Lab → · Contrast checker → · Palette generator →