#123739#123739

#123739 is a dark, muted teal. Relative luminance 0.032; OKLCH L 31.1% C 0.042 H 200.1°. Best body text is #FFFFFF at 12.87:1 contrast (WCAG AA passes).

Color values

HEX	#123739
RGB	rgb(18, 55, 57)
HSL	hsl(183, 52%, 15%)
HSV	hsv(183, 68%, 22%)
CMYK	cmyk(68.4%, 3.5%, 0%, 77.6%)
CIE-LAB	lab(20.66, -12.27, -5.19)
CIE-LCH	lch(20.66, 13.32, 202.94°)
OKLab	oklab(31.14% -0.0392 -0.0144)
OKLCH	oklch(31.14% 0.042 200.1)
XYZ	xyz(2.3538, 3.1561, 4.3552)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123739 #391412

analogous

#123928 #123739 #122439

triadic

#123739 #391237 #373912

tetradic

#123739 #281239 #391412 #243912

square

#123739 #281239 #391412 #243912

split-complementary

#123739 #391224 #392812

monochromatic

#071617 #071617 #123739 #216468 #2F9196

Accessibility & contrast

On white

12.87

#123739 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#123739 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123739

12.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123739	#FFFFFF	#000000	##FFFFFF
##123739	1.00	12.87	1.63	12.87
#FFFFFF	12.87	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333439

Deuteranopia (green-blind)

#2D3039

Tritanopia (blue-blind)

#003938

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #123739;
/* rgb */ color: rgb(18, 55, 57);
/* oklch */ color: oklch(31.1% 0.042 200.1);

Tailwind

colors: {
  custom: {
    50: '#556e6f',
    500: '#123739',
    950: '#000000',
  },
}

SCSS

$custom: #123739;
$custom-light: #556e6f;
$custom-dark: #000000;

JSON

{
  "hex": "#123739",
  "rgb": {
    "r": 18,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 183.077,
    "s": 52,
    "l": 14.706
  },
  "oklch": {
    "l": 0.31137,
    "c": 0.04172,
    "h": 200.1
  },
  "luminance": 0.03156
}

Semantic roles & 50–950 ramp

primary

#123739

secondary

#723835

accent

#544CDB

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030707

muted

#787A7A

Preview Lab

Preview with #123739

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

Preview Lab → · Contrast checker → · Palette generator →