#12366C#12366C

#12366C is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.0% C 0.103 H 258.7°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#12366C
RGB	rgb(18, 54, 108)
HSL	hsl(216, 71%, 25%)
HSV	hsv(216, 83%, 42%)
CMYK	cmyk(83.3%, 50%, 0%, 57.6%)
CIE-LAB	lab(23.17, 8.99, -35.08)
CIE-LCH	lch(23.17, 36.21, 284.37°)
OKLab	oklab(34.04% -0.0201 -0.1008)
OKLCH	oklch(34.04% 0.103 258.7)
XYZ	xyz(4.2744, 3.8491, 14.7021)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12366C #6C4812

analogous

#12636C #12366C #1B126C

triadic

#12366C #6C1236 #366C12

tetradic

#12366C #6C1263 #6C4812 #126C1B

square

#12366C #6C1263 #6C4812 #126C1B

split-complementary

#12366C #6C1B12 #636C12

monochromatic

#040D1A #091C38 #12366C #1B50A0 #236AD5

Accessibility & contrast

On white

11.86

#12366C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#12366C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12366C

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12366C	#FFFFFF	#000000	##FFFFFF
##12366C	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183C6E

Deuteranopia (green-blind)

#00336B

Tritanopia (blue-blind)

#00434B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #12366c;
/* rgb */ color: rgb(18, 54, 108);
/* oklch */ color: oklch(34.0% 0.103 258.7);

Tailwind

colors: {
  custom: {
    50: '#606c96',
    500: '#12366c',
    950: '#000000',
  },
}

SCSS

$custom: #12366c;
$custom-light: #606c96;
$custom-dark: #000000;

JSON

{
  "hex": "#12366c",
  "rgb": {
    "r": 18,
    "g": 54,
    "b": 108
  },
  "hsl": {
    "h": 216,
    "s": 71.429,
    "l": 24.706
  },
  "oklch": {
    "l": 0.34041,
    "c": 0.10276,
    "h": 258.7
  },
  "luminance": 0.0385
}

Semantic roles & 50–950 ramp

primary

#12366C

secondary

#A37836

accent

#A63AEE

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #12366C

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

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