#12333B#12333B

#12333B is a dark, muted cyan. Relative luminance 0.028; OKLCH L 30.0% C 0.041 H 216.2°. Best body text is #FFFFFF at 13.44:1 contrast (WCAG AA passes).

Color values

HEX	#12333B
RGB	rgb(18, 51, 59)
HSL	hsl(192, 53%, 15%)
HSV	hsv(192, 69%, 23%)
CMYK	cmyk(69.5%, 13.6%, 0%, 76.9%)
CIE-LAB	lab(19.27, -9.07, -8.65)
CIE-LCH	lch(19.27, 12.53, 223.65°)
OKLab	oklab(30.05% -0.0328 -0.024)
OKLCH	oklch(30.05% 0.041 216.2)
XYZ	xyz(2.2224, 2.8118, 4.5624)
Luminance	0.0281 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12333B #3B1A12

analogous

#123B2E #12333B #121F3B

triadic

#12333B #3B1233 #333B12

tetradic

#12333B #2E123B #3B1A12 #1F3B12

square

#12333B #2E123B #3B1A12 #1F3B12

split-complementary

#12333B #3B121F #3B2E12

monochromatic

#071417 #071417 #12333B #205C6A #2F8499

Accessibility & contrast

On white

13.44

#12333B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#12333B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12333B

13.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12333B	#FFFFFF	#000000	##FFFFFF
##12333B	1.00	13.44	1.56	13.44
#FFFFFF	13.44	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E313B

Deuteranopia (green-blind)

#272D3B

Tritanopia (blue-blind)

#003635

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #12333b;
/* rgb */ color: rgb(18, 51, 59);
/* oklch */ color: oklch(30.0% 0.041 216.2);

Tailwind

colors: {
  custom: {
    50: '#556a70',
    500: '#12333b',
    950: '#000000',
  },
}

SCSS

$custom: #12333b;
$custom-light: #556a70;
$custom-dark: #000000;

JSON

{
  "hex": "#12333b",
  "rgb": {
    "r": 18,
    "g": 51,
    "b": 59
  },
  "hsl": {
    "h": 191.707,
    "s": 53.247,
    "l": 15.098
  },
  "oklch": {
    "l": 0.3005,
    "c": 0.04068,
    "h": 216.2
  },
  "luminance": 0.02812
}

Semantic roles & 50–950 ramp

primary

#12333B

secondary

#744135

accent

#684BDD

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #12333B

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

Preview Lab → · Contrast checker → · Palette generator →