#123F2B#123F2B

#123F2B is a dark, moderate teal. Relative luminance 0.039; OKLCH L 33.1% C 0.061 H 160.8°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#123F2B
RGB	rgb(18, 63, 43)
HSL	hsl(153, 56%, 16%)
HSV	hsv(153, 71%, 25%)
CMYK	cmyk(71.4%, 0%, 31.7%, 75.3%)
CIE-LAB	lab(23.20, -20.99, 7.85)
CIE-LCH	lch(23.20, 22.41, 159.49°)
OKLab	oklab(33.06% -0.0575 0.02)
OKLCH	oklch(33.06% 0.061 160.8)
XYZ	xyz(2.4628, 3.8578, 2.8999)
Luminance	0.0386 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F2B #3F1226

analogous

#123F14 #123F2B #123C3F

triadic

#123F2B #2B123F #3F2B12

tetradic

#123F2B #14123F #3F1226 #3C3F12

square

#123F2B #14123F #3F1226 #3C3F12

split-complementary

#123F2B #3F123C #3F1412

monochromatic

#071810 #071810 #123F2B #206F4B #2D9E6C

Accessibility & contrast

On white

11.85

#123F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#123F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F2B

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F2B	#FFFFFF	#000000	##FFFFFF
##123F2B	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3A2A

Deuteranopia (green-blind)

#38362C

Tritanopia (blue-blind)

#003F3A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123f2b;
/* rgb */ color: rgb(18, 63, 43);
/* oklch */ color: oklch(33.1% 0.061 160.8);

Tailwind

colors: {
  custom: {
    50: '#567464',
    500: '#123f2b',
    950: '#000000',
  },
}

SCSS

$custom: #123f2b;
$custom-light: #567464;
$custom-dark: #000000;

JSON

{
  "hex": "#123f2b",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 43
  },
  "hsl": {
    "h": 153.333,
    "s": 55.556,
    "l": 15.882
  },
  "oklch": {
    "l": 0.33055,
    "c": 0.06087,
    "h": 160.8
  },
  "luminance": 0.03858
}

Semantic roles & 50–950 ramp

primary

#123F2B

secondary

#783553

accent

#498CDF

background

#F5F7F5

surface

#E9EDEA

border

#C5C8C6

text

#030805

muted

#787B79

Preview Lab

Preview with #123F2B

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

Preview Lab → · Contrast checker → · Palette generator →