#12404B#12404B

#12404B is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.6% C 0.052 H 216.9°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#12404B
RGB	rgb(18, 64, 75)
HSL	hsl(192, 61%, 18%)
HSV	hsv(192, 76%, 29%)
CMYK	cmyk(76%, 14.7%, 0%, 70.6%)
CIE-LAB	lab(24.65, -11.24, -11.20)
CIE-LCH	lch(24.65, 15.87, 224.90°)
OKLab	oklab(34.6% -0.0416 -0.0312)
OKLCH	oklch(34.6% 0.052 216.9)
XYZ	xyz(3.3523, 4.3030, 7.3091)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12404B #4B1D12

analogous

#124B39 #12404B #12234B

triadic

#12404B #4B1240 #404B12

tetradic

#12404B #39124B #4B1D12 #234B12

square

#12404B #39124B #4B1D12 #234B12

split-complementary

#12404B #4B1223 #4B3912

monochromatic

#061519 #06161A #12404B #1E6A7C #2A94AE

Accessibility & contrast

On white

11.29

#12404B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#12404B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12404B

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12404B	#FFFFFF	#000000	##FFFFFF
##12404B	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393E4C

Deuteranopia (green-blind)

#31384B

Tritanopia (blue-blind)

#004443

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #12404b;
/* rgb */ color: rgb(18, 64, 75);
/* oklch */ color: oklch(34.6% 0.052 216.9);

Tailwind

colors: {
  custom: {
    50: '#59757d',
    500: '#12404b',
    950: '#000000',
  },
}

SCSS

$custom: #12404b;
$custom-light: #59757d;
$custom-dark: #000000;

JSON

{
  "hex": "#12404b",
  "rgb": {
    "r": 18,
    "g": 64,
    "b": 75
  },
  "hsl": {
    "h": 191.579,
    "s": 61.29,
    "l": 18.235
  },
  "oklch": {
    "l": 0.34595,
    "c": 0.05201,
    "h": 216.9
  },
  "luminance": 0.04303
}

Semantic roles & 50–950 ramp

primary

#12404B

secondary

#844435

accent

#6243E4

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #12404B

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

Preview Lab → · Contrast checker → · Palette generator →