#12104E#12104E

#12104E is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.9% C 0.109 H 275.0°. Best body text is #FFFFFF at 17.36:1 contrast (WCAG AA passes).

Color values

HEX	#12104E
RGB	rgb(18, 16, 78)
HSL	hsl(242, 66%, 18%)
HSV	hsv(242, 79%, 31%)
CMYK	cmyk(76.9%, 79.5%, 0%, 69.4%)
CIE-LAB	lab(9.39, 24.05, -37.52)
CIE-LCH	lch(9.39, 44.56, 302.66°)
OKLab	oklab(22.92% 0.0094 -0.1085)
OKLCH	oklch(22.92% 0.109 275)
XYZ	xyz(1.8094, 1.0491, 7.3134)
Luminance	0.0105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12104E #4C4E10

analogous

#102D4E #12104E #31104E

triadic

#12104E #4E1210 #104E12

tetradic

#12104E #4E102D #4C4E10 #104E31

square

#12104E #4E102D #4C4E10 #104E31

split-complementary

#12104E #4E3110 #2D4E10

monochromatic

#060519 #06061B #12104E #1E1A81 #2925B4

Accessibility & contrast

On white

17.36

#12104E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#12104E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12104E

17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12104E	#FFFFFF	#000000	##FFFFFF
##12104E	1.00	17.36	1.21	17.36
#FFFFFF	17.36	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D50

Deuteranopia (green-blind)

#00174D

Tritanopia (blue-blind)

#00212D

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #12104e;
/* rgb */ color: rgb(18, 16, 78);
/* oklch */ color: oklch(22.9% 0.109 275.0);

Tailwind

colors: {
  custom: {
    50: '#5b4f80',
    500: '#12104e',
    950: '#000000',
  },
}

SCSS

$custom: #12104e;
$custom-light: #5b4f80;
$custom-dark: #000000;

JSON

{
  "hex": "#12104e",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 78
  },
  "hsl": {
    "h": 241.935,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.22915,
    "c": 0.10887,
    "h": 275
  },
  "luminance": 0.01049
}

Semantic roles & 50–950 ramp

primary

#12104E

secondary

#858832

accent

#E93FE3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #12104E

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

Preview Lab → · Contrast checker → · Palette generator →