#12405C#12405C

#12405C is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.5% C 0.069 H 239.9°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#12405C
RGB	rgb(18, 64, 92)
HSL	hsl(203, 67%, 22%)
HSV	hsv(203, 80%, 36%)
CMYK	cmyk(80.4%, 30.4%, 0%, 63.9%)
CIE-LAB	lab(25.47, -4.61, -21.07)
CIE-LCH	lch(25.47, 21.57, 257.65°)
OKLab	oklab(35.52% -0.0345 -0.0595)
OKLCH	oklch(35.52% 0.069 239.9)
XYZ	xyz(4.0139, 4.5676, 10.7932)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12405C #5C2E12

analogous

#125C53 #12405C #121B5C

triadic

#12405C #5C1240 #405C12

tetradic

#12405C #53125C #5C2E12 #1B5C12

square

#12405C #53125C #5C2E12 #1B5C12

split-complementary

#12405C #5C121B #5C5312

monochromatic

#05121A #081C29 #12405C #1C648F #2687C2

Accessibility & contrast

On white

10.97

#12405C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#12405C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12405C

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12405C	#FFFFFF	#000000	##FFFFFF
##12405C	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33405D

Deuteranopia (green-blind)

#29395C

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #12405c;
/* rgb */ color: rgb(18, 64, 92);
/* oklch */ color: oklch(35.5% 0.069 239.9);

Tailwind

colors: {
  custom: {
    50: '#5c748a',
    500: '#12405c',
    950: '#000000',
  },
}

SCSS

$custom: #12405c;
$custom-light: #5c748a;
$custom-dark: #000000;

JSON

{
  "hex": "#12405c",
  "rgb": {
    "r": 18,
    "g": 64,
    "b": 92
  },
  "hsl": {
    "h": 202.703,
    "s": 67.273,
    "l": 21.569
  },
  "oklch": {
    "l": 0.35516,
    "c": 0.06881,
    "h": 239.9
  },
  "luminance": 0.04568
}

Semantic roles & 50–950 ramp

primary

#12405C

secondary

#945935

accent

#7F3EEA

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #12405C

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

Preview Lab → · Contrast checker → · Palette generator →