#123366#123366

#123366 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 32.8% C 0.098 H 259.1°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#123366
RGB	rgb(18, 51, 102)
HSL	hsl(216, 70%, 24%)
HSV	hsv(216, 82%, 40%)
CMYK	cmyk(82.4%, 50%, 0%, 60%)
CIE-LAB	lab(21.78, 8.58, -33.42)
CIE-LCH	lch(21.78, 34.51, 284.39°)
OKLab	oklab(32.84% -0.0185 -0.096)
OKLCH	oklch(32.84% 0.098 259.1)
XYZ	xyz(3.8307, 3.4551, 13.0328)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123366 #664512

analogous

#125D66 #123366 #1B1266

triadic

#123366 #661233 #336612

tetradic

#123366 #66125D #664512 #12661B

square

#123366 #66125D #664512 #12661B

split-complementary

#123366 #661B12 #5D6612

monochromatic

#050D1A #091932 #123366 #1B4D9A #2467CE

Accessibility & contrast

On white

12.42

#123366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#123366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123366

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123366	#FFFFFF	#000000	##FFFFFF
##123366	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173868

Deuteranopia (green-blind)

#013165

Tritanopia (blue-blind)

#003F47

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #123366;
/* rgb */ color: rgb(18, 51, 102);
/* oklch */ color: oklch(32.8% 0.098 259.1);

Tailwind

colors: {
  custom: {
    50: '#5e6a92',
    500: '#123366',
    950: '#000000',
  },
}

SCSS

$custom: #123366;
$custom-light: #5e6a92;
$custom-dark: #000000;

JSON

{
  "hex": "#123366",
  "rgb": {
    "r": 18,
    "g": 51,
    "b": 102
  },
  "hsl": {
    "h": 216.429,
    "s": 70,
    "l": 23.529
  },
  "oklch": {
    "l": 0.32837,
    "c": 0.09775,
    "h": 259.1
  },
  "luminance": 0.03456
}

Semantic roles & 50–950 ramp

primary

#123366

secondary

#9E7536

accent

#A73BED

background

#F5F6F9

surface

#EAEBF1

border

#C6C6CB

text

#05060D

muted

#797A7E

Preview Lab

Preview with #123366

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

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