#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
RGB	rgb(18, 63, 57)
HSL	hsl(172, 56%, 16%)
HSV	hsv(172, 71%, 25%)
CMYK	cmyk(71.4%, 0%, 9.5%, 75.3%)
CIE-LAB	lab(23.60, -16.92, -0.83)
CIE-LCH	lch(23.60, 16.94, 182.81°)
OKLab	oklab(33.52% -0.0496 -0.0025)
OKLCH	oklch(33.52% 0.05 182.9)
XYZ	xyz(2.7651, 3.9787, 4.4923)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	teal

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
##123F39	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

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 →