#123E39#123E39

#123E39 is a dark, muted teal. Relative luminance 0.039; OKLCH L 33.2% C 0.048 H 184.7°. Best body text is #FFFFFF at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#123E39
RGB	rgb(18, 62, 57)
HSL	hsl(173, 55%, 16%)
HSV	hsv(173, 71%, 24%)
CMYK	cmyk(71%, 0%, 8.1%, 75.7%)
CIE-LAB	lab(23.23, -16.35, -1.37)
CIE-LCH	lch(23.23, 16.41, 184.79°)
OKLab	oklab(33.22% -0.0483 -0.004)
OKLCH	oklch(33.22% 0.048 184.7)
XYZ	xyz(2.7103, 3.8690, 4.4741)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E39 #3E1217

analogous

#123E23 #123E39 #122D3E

triadic

#123E39 #39123E #3E3912

tetradic

#123E39 #23123E #3E1217 #2D3E12

square

#123E39 #23123E #3E1217 #2D3E12

split-complementary

#123E39 #3E122D #3E2312

monochromatic

#071816 #071816 #123E39 #206D65 #2E9D90

Accessibility & contrast

On white

11.84

#123E39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#123E39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E39

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E39	#FFFFFF	#000000	##FFFFFF
##123E39	1.00	11.84	1.77	11.84
#FFFFFF	11.84	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3A39

Deuteranopia (green-blind)

#34353A

Tritanopia (blue-blind)

#003F3C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123e39;
/* rgb */ color: rgb(18, 62, 57);
/* oklch */ color: oklch(33.2% 0.048 184.7);

Tailwind

colors: {
  custom: {
    50: '#56736f',
    500: '#123e39',
    950: '#000000',
  },
}

SCSS

$custom: #123e39;
$custom-light: #56736f;
$custom-dark: #000000;

JSON

{
  "hex": "#123e39",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 57
  },
  "hsl": {
    "h": 173.182,
    "s": 55,
    "l": 15.686
  },
  "oklch": {
    "l": 0.33222,
    "c": 0.04846,
    "h": 184.7
  },
  "luminance": 0.03869
}

Semantic roles & 50–950 ramp

primary

#123E39

secondary

#77353C

accent

#495ADE

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#030807

muted

#787B7A

Preview Lab

Preview with #123E39

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

Preview Lab → · Contrast checker → · Palette generator →