#12374B#12374B

#12374B is a dark, muted cyan. Relative luminance 0.034; OKLCH L 32.0% C 0.055 H 235.8°. Best body text is #FFFFFF at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#12374B
RGB	rgb(18, 55, 75)
HSL	hsl(201, 61%, 18%)
HSV	hsv(201, 76%, 29%)
CMYK	cmyk(76%, 26.7%, 0%, 70.6%)
CIE-LAB	lab(21.46, -5.51, -16.11)
CIE-LCH	lch(21.46, 17.03, 251.11°)
OKLab	oklab(32.05% -0.0307 -0.0453)
OKLCH	oklch(32.05% 0.055 235.8)
XYZ	xyz(2.8851, 3.3687, 7.1534)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12374B #4B2612

analogous

#124B42 #12374B #121A4B

triadic

#12374B #4B1237 #374B12

tetradic

#12374B #42124B #4B2612 #1A4B12

square

#12374B #42124B #4B2612 #1A4B12

split-complementary

#12374B #4B121A #4B4212

monochromatic

#061219 #06131A #12374B #1E5B7C #2A7FAE

Accessibility & contrast

On white

12.55

#12374B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#12374B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12374B

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12374B	#FFFFFF	#000000	##FFFFFF
##12374B	1.00	12.55	1.67	12.55
#FFFFFF	12.55	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D374C

Deuteranopia (green-blind)

#26314B

Tritanopia (blue-blind)

#003C3E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #12374b;
/* rgb */ color: rgb(18, 55, 75);
/* oklch */ color: oklch(32.0% 0.055 235.8);

Tailwind

colors: {
  custom: {
    50: '#586d7d',
    500: '#12374b',
    950: '#000000',
  },
}

SCSS

$custom: #12374b;
$custom-light: #586d7d;
$custom-dark: #000000;

JSON

{
  "hex": "#12374b",
  "rgb": {
    "r": 18,
    "g": 55,
    "b": 75
  },
  "hsl": {
    "h": 201.053,
    "s": 61.29,
    "l": 18.235
  },
  "oklch": {
    "l": 0.32048,
    "c": 0.05474,
    "h": 235.8
  },
  "luminance": 0.03369
}

Semantic roles & 50–950 ramp

primary

#12374B

secondary

#845135

accent

#7C43E4

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #12374B

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

Preview Lab → · Contrast checker → · Palette generator →