#12343B#12343B

#12343B is a dark, muted cyan. Relative luminance 0.029; OKLCH L 30.3% C 0.041 H 213.3°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#12343B
RGB	rgb(18, 52, 59)
HSL	hsl(190, 53%, 15%)
HSV	hsv(190, 69%, 23%)
CMYK	cmyk(69.5%, 11.9%, 0%, 76.9%)
CIE-LAB	lab(19.64, -9.70, -8.09)
CIE-LCH	lch(19.64, 12.63, 219.84°)
OKLab	oklab(30.34% -0.0342 -0.0224)
OKLCH	oklch(30.34% 0.041 213.3)
XYZ	xyz(2.2665, 2.9001, 4.5772)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12343B #3B1912

analogous

#123B2D #12343B #121F3B

triadic

#12343B #3B1234 #343B12

tetradic

#12343B #2D123B #3B1912 #1F3B12

square

#12343B #2D123B #3B1912 #1F3B12

split-complementary

#12343B #3B121F #3B2D12

monochromatic

#071517 #071517 #12343B #205D6A #2F8799

Accessibility & contrast

On white

13.29

#12343B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#12343B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12343B

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12343B	#FFFFFF	#000000	##FFFFFF
##12343B	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F323B

Deuteranopia (green-blind)

#292E3B

Tritanopia (blue-blind)

#003736

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #12343b;
/* rgb */ color: rgb(18, 52, 59);
/* oklch */ color: oklch(30.3% 0.041 213.3);

Tailwind

colors: {
  custom: {
    50: '#556b70',
    500: '#12343b',
    950: '#000000',
  },
}

SCSS

$custom: #12343b;
$custom-light: #556b70;
$custom-dark: #000000;

JSON

{
  "hex": "#12343b",
  "rgb": {
    "r": 18,
    "g": 52,
    "b": 59
  },
  "hsl": {
    "h": 190.244,
    "s": 53.247,
    "l": 15.098
  },
  "oklch": {
    "l": 0.30344,
    "c": 0.04089,
    "h": 213.3
  },
  "luminance": 0.029
}

Semantic roles & 50–950 ramp

primary

#12343B

secondary

#744035

accent

#644BDD

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #12343B

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

Preview Lab → · Contrast checker → · Palette generator →