#123740#123740

#123740 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.5% C 0.044 H 216.5°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#123740
RGB	rgb(18, 55, 64)
HSL	hsl(192, 56%, 16%)
HSV	hsv(192, 72%, 25%)
CMYK	cmyk(71.9%, 14.1%, 0%, 74.9%)
CIE-LAB	lab(20.95, -9.75, -9.50)
CIE-LCH	lch(20.95, 13.62, 224.27°)
OKLab	oklab(31.46% -0.0356 -0.0264)
OKLCH	oklch(31.46% 0.044 216.5)
XYZ	xyz(2.5407, 3.2309, 5.3392)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123740 #401B12

analogous

#124032 #123740 #122040

triadic

#123740 #401237 #374012

tetradic

#123740 #321240 #401B12 #204012

square

#123740 #321240 #401B12 #204012

split-complementary

#123740 #401220 #403212

monochromatic

#071518 #071518 #123740 #1F6070 #2D89A0

Accessibility & contrast

On white

12.76

#123740 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#123740 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123740

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123740	#FFFFFF	#000000	##FFFFFF
##123740	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313541

Deuteranopia (green-blind)

#2A3040

Tritanopia (blue-blind)

#003A3A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #123740;
/* rgb */ color: rgb(18, 55, 64);
/* oklch */ color: oklch(31.5% 0.044 216.5);

Tailwind

colors: {
  custom: {
    50: '#566d74',
    500: '#123740',
    950: '#000000',
  },
}

SCSS

$custom: #123740;
$custom-light: #566d74;
$custom-dark: #000000;

JSON

{
  "hex": "#123740",
  "rgb": {
    "r": 18,
    "g": 55,
    "b": 64
  },
  "hsl": {
    "h": 191.739,
    "s": 56.098,
    "l": 16.078
  },
  "oklch": {
    "l": 0.31463,
    "c": 0.04436,
    "h": 216.5
  },
  "luminance": 0.03231
}

Semantic roles & 50–950 ramp

primary

#123740

secondary

#794235

accent

#6648DF

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #123740

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

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