#123738#123738

#123738 is a dark, muted teal. Relative luminance 0.031; OKLCH L 31.1% C 0.042 H 197.7°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#123738
RGB	rgb(18, 55, 56)
HSL	hsl(182, 51%, 15%)
HSV	hsv(182, 68%, 22%)
CMYK	cmyk(67.9%, 1.8%, 0%, 78%)
CIE-LAB	lab(20.62, -12.62, -4.57)
CIE-LCH	lch(20.62, 13.42, 199.92°)
OKLab	oklab(31.09% -0.0397 -0.0127)
OKLCH	oklch(31.09% 0.042 197.7)
XYZ	xyz(2.3291, 3.1463, 4.2252)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123738 #381312

analogous

#123826 #123738 #122438

triadic

#123738 #381237 #373812

tetradic

#123738 #261238 #381312 #243812

square

#123738 #261238 #381312 #243812

split-complementary

#123738 #381224 #382612

monochromatic

#071717 #071717 #123738 #216466 #309295

Accessibility & contrast

On white

12.89

#123738 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#123738 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123738

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123738	#FFFFFF	#000000	##FFFFFF
##123738	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333438

Deuteranopia (green-blind)

#2D3038

Tritanopia (blue-blind)

#003937

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #123738;
/* rgb */ color: rgb(18, 55, 56);
/* oklch */ color: oklch(31.1% 0.042 197.7);

Tailwind

colors: {
  custom: {
    50: '#556e6e',
    500: '#123738',
    950: '#000000',
  },
}

SCSS

$custom: #123738;
$custom-light: #556e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#123738",
  "rgb": {
    "r": 18,
    "g": 55,
    "b": 56
  },
  "hsl": {
    "h": 181.579,
    "s": 51.351,
    "l": 14.51
  },
  "oklch": {
    "l": 0.31094,
    "c": 0.04166,
    "h": 197.7
  },
  "luminance": 0.03146
}

Semantic roles & 50–950 ramp

primary

#123738

secondary

#713735

accent

#514DDB

background

#F5F6F6

surface

#E9EBEB

border

#C5C6C6

text

#030707

muted

#787A7A

Preview Lab

Preview with #123738

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

Preview Lab → · Contrast checker → · Palette generator →