#12366E#12366E

#12366E is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.2% C 0.106 H 259.2°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#12366E
RGB	rgb(18, 54, 110)
HSL	hsl(217, 72%, 25%)
HSV	hsv(217, 84%, 43%)
CMYK	cmyk(83.6%, 50.9%, 0%, 56.9%)
CIE-LAB	lab(23.31, 9.84, -36.13)
CIE-LCH	lch(23.31, 37.44, 285.24°)
OKLab	oklab(34.2% -0.0197 -0.1039)
OKLCH	oklch(34.2% 0.106 259.2)
XYZ	xyz(4.3821, 3.8922, 15.2691)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12366E #6E4A12

analogous

#12646E #12366E #1C126E

triadic

#12366E #6E1236 #366E12

tetradic

#12366E #6E1264 #6E4A12 #126E1C

square

#12366E #6E1264 #6E4A12 #126E1C

split-complementary

#12366E #6E1C12 #646E12

monochromatic

#040D1A #091C39 #12366E #1B50A3 #236AD7

Accessibility & contrast

On white

11.81

#12366E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#12366E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12366E

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12366E	#FFFFFF	#000000	##FFFFFF
##12366E	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#163C70

Deuteranopia (green-blind)

#00346D

Tritanopia (blue-blind)

#00434C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #12366e;
/* rgb */ color: rgb(18, 54, 110);
/* oklch */ color: oklch(34.2% 0.106 259.2);

Tailwind

colors: {
  custom: {
    50: '#606c98',
    500: '#12366e',
    950: '#000000',
  },
}

SCSS

$custom: #12366e;
$custom-light: #606c98;
$custom-dark: #000000;

JSON

{
  "hex": "#12366e",
  "rgb": {
    "r": 18,
    "g": 54,
    "b": 110
  },
  "hsl": {
    "h": 216.522,
    "s": 71.875,
    "l": 25.098
  },
  "oklch": {
    "l": 0.342,
    "c": 0.10573,
    "h": 259.2
  },
  "luminance": 0.03893
}

Semantic roles & 50–950 ramp

primary

#12366E

secondary

#A57A37

accent

#A839EF

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #12366E

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

Preview Lab → · Contrast checker → · Palette generator →