#123F39#123F39

#123F39 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.5% C 0.050 H 182.9°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX#123F39
RGBrgb(18, 63, 57)
HSLhsl(172, 56%, 16%)
HSVhsv(172, 71%, 25%)
CMYKcmyk(71.4%, 0%, 9.5%, 75.3%)
CIE-LABlab(23.60, -16.92, -0.83)
CIE-LCHlch(23.60, 16.94, 182.81°)
OKLaboklab(33.52% -0.0496 -0.0025)
OKLCHoklch(33.52% 0.05 182.9)
XYZxyz(2.7651, 3.9787, 4.4923)
Luminance0.0398 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#123F39 #3F1218
analogous
#123F22 #123F39 #122E3F
triadic
#123F39 #39123F #3F3912
tetradic
#123F39 #22123F #3F1218 #2E3F12
square
#123F39 #22123F #3F1218 #2E3F12
split-complementary
#123F39 #3F122E #3F2212
monochromatic
#071816 #071816 #123F39 #206F64 #2D9E8F

Accessibility & contrast

On white

11.69
#123F39 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.80
#123F39 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F39
11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##123F39#FFFFFF#000000##FFFFFF
##123F391.0011.691.8011.69
#FFFFFF11.691.0021.001.00
#0000001.8021.001.0021.00
##FFFFFF11.691.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3C3B39
Deuteranopia (green-blind)
#35363A
Tritanopia (blue-blind)
#00403D
Achromatopsia (no color)
#383838

Design tokens & code

CSS
--color: #123f39;
/* rgb */ color: rgb(18, 63, 57);
/* oklch */ color: oklch(33.5% 0.050 182.9);
Tailwind
colors: {
  custom: {
    50: '#57746f',
    500: '#123f39',
    950: '#000000',
  },
}
SCSS
$custom: #123f39;
$custom-light: #57746f;
$custom-dark: #000000;
JSON
{
  "hex": "#123f39",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 57
  },
  "hsl": {
    "h": 172,
    "s": 55.556,
    "l": 15.882
  },
  "oklch": {
    "l": 0.3352,
    "c": 0.04965,
    "h": 182.9
  },
  "luminance": 0.03979
}

Semantic roles & 50–950 ramp

primary
#123F39
secondary
#78353E
accent
#495DDF
background
#F5F7F6
surface
#E9EDEC
border
#C5C8C7
text
#030807
muted
#787B7A

Preview Lab

Preview with #123F39

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

Preview Lab → · Contrast checker → · Palette generator →

#123F39 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva