#12405D#12405D

#12405D is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.6% C 0.070 H 240.9°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#12405D
RGB	rgb(18, 64, 93)
HSL	hsl(203, 68%, 22%)
HSV	hsv(203, 81%, 36%)
CMYK	cmyk(80.6%, 31.2%, 0%, 63.5%)
CIE-LAB	lab(25.52, -4.21, -21.63)
CIE-LCH	lch(25.52, 22.04, 259.00°)
OKLab	oklab(35.58% -0.0341 -0.0612)
OKLCH	oklch(35.58% 0.07 240.9)
XYZ	xyz(4.0579, 4.5852, 11.0250)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12405D #5D2F12

analogous

#125D55 #12405D #121B5D

triadic

#12405D #5D1240 #405D12

tetradic

#12405D #55125D #5D2F12 #1B5D12

square

#12405D #55125D #5D2F12 #1B5D12

split-complementary

#12405D #5D121B #5D5512

monochromatic

#05121A #081D2A #12405D #1C6390 #2687C4

Accessibility & contrast

On white

10.95

#12405D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#12405D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12405D

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12405D	#FFFFFF	#000000	##FFFFFF
##12405D	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32405E

Deuteranopia (green-blind)

#28395C

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #12405d;
/* rgb */ color: rgb(18, 64, 93);
/* oklch */ color: oklch(35.6% 0.070 240.9);

Tailwind

colors: {
  custom: {
    50: '#5c748b',
    500: '#12405d',
    950: '#000000',
  },
}

SCSS

$custom: #12405d;
$custom-light: #5c748b;
$custom-dark: #000000;

JSON

{
  "hex": "#12405d",
  "rgb": {
    "r": 18,
    "g": 64,
    "b": 93
  },
  "hsl": {
    "h": 203.2,
    "s": 67.568,
    "l": 21.765
  },
  "oklch": {
    "l": 0.35576,
    "c": 0.07006,
    "h": 240.9
  },
  "luminance": 0.04586
}

Semantic roles & 50–950 ramp

primary

#12405D

secondary

#955B35

accent

#803DEA

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #12405D

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

Preview Lab → · Contrast checker → · Palette generator →