#12333A#12333A

#12333A is a dark, muted cyan. Relative luminance 0.028; OKLCH L 30.0% C 0.040 H 213.7°. Best body text is #FFFFFF at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#12333A
RGB	rgb(18, 51, 58)
HSL	hsl(191, 53%, 15%)
HSV	hsv(191, 69%, 23%)
CMYK	cmyk(69%, 12.1%, 0%, 77.3%)
CIE-LAB	lab(19.23, -9.43, -8.03)
CIE-LCH	lch(19.23, 12.39, 220.41°)
OKLab	oklab(30% -0.0333 -0.0223)
OKLCH	oklch(30% 0.04 213.7)
XYZ	xyz(2.1967, 2.8015, 4.4271)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12333A #3A1912

analogous

#123A2D #12333A #121F3A

triadic

#12333A #3A1233 #333A12

tetradic

#12333A #2D123A #3A1912 #1F3A12

square

#12333A #2D123A #3A1912 #1F3A12

split-complementary

#12333A #3A121F #3A2D12

monochromatic

#071517 #071517 #12333A #205C69 #2F8597

Accessibility & contrast

On white

13.46

#12333A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#12333A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12333A

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12333A	#FFFFFF	#000000	##FFFFFF
##12333A	1.00	13.46	1.56	13.46
#FFFFFF	13.46	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E313A

Deuteranopia (green-blind)

#282D3A

Tritanopia (blue-blind)

#003635

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #12333a;
/* rgb */ color: rgb(18, 51, 58);
/* oklch */ color: oklch(30.0% 0.040 213.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#12333a",
  "rgb": {
    "r": 18,
    "g": 51,
    "b": 58
  },
  "hsl": {
    "h": 190.5,
    "s": 52.632,
    "l": 14.902
  },
  "oklch": {
    "l": 0.30002,
    "c": 0.04009,
    "h": 213.7
  },
  "luminance": 0.02802
}

Semantic roles & 50–950 ramp

primary

#12333A

secondary

#734035

accent

#654CDC

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #12333A

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

Preview Lab → · Contrast checker → · Palette generator →