#123E42#123E42

#123E42 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.6% C 0.048 H 203.7°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#123E42
RGB	rgb(18, 62, 66)
HSL	hsl(185, 57%, 16%)
HSV	hsv(185, 73%, 26%)
CMYK	cmyk(72.7%, 6.1%, 0%, 74.1%)
CIE-LAB	lab(23.56, -13.30, -6.88)
CIE-LCH	lch(23.56, 14.98, 207.35°)
OKLab	oklab(33.6% -0.0435 -0.0191)
OKLCH	oklch(33.6% 0.048 203.7)
XYZ	xyz(2.9550, 3.9669, 5.7631)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E42 #421612

analogous

#12422E #123E42 #122642

triadic

#123E42 #42123E #3E4212

tetradic

#123E42 #2E1242 #421612 #264212

square

#123E42 #2E1242 #421612 #264212

split-complementary

#123E42 #421226 #422E12

monochromatic

#071718 #071718 #123E42 #1F6B72 #2C98A2

Accessibility & contrast

On white

11.71

#123E42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#123E42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E42

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E42	#FFFFFF	#000000	##FFFFFF
##123E42	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393B42

Deuteranopia (green-blind)

#313642

Tritanopia (blue-blind)

#00413F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #123e42;
/* rgb */ color: rgb(18, 62, 66);
/* oklch */ color: oklch(33.6% 0.048 203.7);

Tailwind

colors: {
  custom: {
    50: '#577376',
    500: '#123e42',
    950: '#000000',
  },
}

SCSS

$custom: #123e42;
$custom-light: #577376;
$custom-dark: #000000;

JSON

{
  "hex": "#123e42",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 66
  },
  "hsl": {
    "h": 185,
    "s": 57.143,
    "l": 16.471
  },
  "oklch": {
    "l": 0.33596,
    "c": 0.04755,
    "h": 203.7
  },
  "luminance": 0.03967
}

Semantic roles & 50–950 ramp

primary

#123E42

secondary

#7B3B35

accent

#5447E0

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#030808

muted

#787B7B

Preview Lab

Preview with #123E42

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

Preview Lab → · Contrast checker → · Palette generator →