#12366A#12366A

#12366A is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.9% C 0.100 H 258.2°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#12366A
RGB	rgb(18, 54, 106)
HSL	hsl(215, 71%, 24%)
HSV	hsv(215, 83%, 42%)
CMYK	cmyk(83%, 49.1%, 0%, 58.4%)
CIE-LAB	lab(23.02, 8.13, -34.02)
CIE-LCH	lch(23.02, 34.98, 283.45°)
OKLab	oklab(33.89% -0.0205 -0.0977)
OKLCH	oklch(33.89% 0.1 258.2)
XYZ	xyz(4.1692, 3.8070, 14.1480)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12366A #6A4612

analogous

#12626A #12366A #1A126A

triadic

#12366A #6A1236 #366A12

tetradic

#12366A #6A1262 #6A4612 #126A1A

square

#12366A #6A1262 #6A4612 #126A1A

split-complementary

#12366A #6A1A12 #626A12

monochromatic

#040D1A #091B36 #12366A #1B519E #246BD3

Accessibility & contrast

On white

11.92

#12366A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#12366A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12366A

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12366A	#FFFFFF	#000000	##FFFFFF
##12366A	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A3B6C

Deuteranopia (green-blind)

#043369

Tritanopia (blue-blind)

#00424A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #12366a;
/* rgb */ color: rgb(18, 54, 106);
/* oklch */ color: oklch(33.9% 0.100 258.2);

Tailwind

colors: {
  custom: {
    50: '#5f6c95',
    500: '#12366a',
    950: '#000000',
  },
}

SCSS

$custom: #12366a;
$custom-light: #5f6c95;
$custom-dark: #000000;

JSON

{
  "hex": "#12366a",
  "rgb": {
    "r": 18,
    "g": 54,
    "b": 106
  },
  "hsl": {
    "h": 215.455,
    "s": 70.968,
    "l": 24.314
  },
  "oklch": {
    "l": 0.33885,
    "c": 0.09978,
    "h": 258.2
  },
  "luminance": 0.03808
}

Semantic roles & 50–950 ramp

primary

#12366A

secondary

#A27636

accent

#A43AEE

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #12366A

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

Preview Lab → · Contrast checker → · Palette generator →