#123F48#123F48

#123F48 is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.2% C 0.050 H 213.5°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#123F48
RGB	rgb(18, 63, 72)
HSL	hsl(190, 60%, 18%)
HSV	hsv(190, 75%, 28%)
CMYK	cmyk(75%, 12.5%, 0%, 71.8%)
CIE-LAB	lab(24.16, -11.74, -9.95)
CIE-LCH	lch(24.16, 15.39, 220.30°)
OKLab	oklab(34.16% -0.0418 -0.0277)
OKLCH	oklch(34.16% 0.05 213.5)
XYZ	xyz(3.1962, 4.1511, 6.7624)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F48 #481B12

analogous

#124836 #123F48 #122448

triadic

#123F48 #48123F #3F4812

tetradic

#123F48 #361248 #481B12 #244812

square

#123F48 #361248 #481B12 #244812

split-complementary

#123F48 #481224 #483612

monochromatic

#061518 #061518 #123F48 #1E6A79 #2A95AA

Accessibility & contrast

On white

11.47

#123F48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#123F48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F48

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F48	#FFFFFF	#000000	##FFFFFF
##123F48	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383D49

Deuteranopia (green-blind)

#313748

Tritanopia (blue-blind)

#004342

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #123f48;
/* rgb */ color: rgb(18, 63, 72);
/* oklch */ color: oklch(34.2% 0.050 213.5);

Tailwind

colors: {
  custom: {
    50: '#58747b',
    500: '#123f48',
    950: '#000000',
  },
}

SCSS

$custom: #123f48;
$custom-light: #58747b;
$custom-dark: #000000;

JSON

{
  "hex": "#123f48",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 72
  },
  "hsl": {
    "h": 190,
    "s": 60,
    "l": 17.647
  },
  "oklch": {
    "l": 0.34163,
    "c": 0.05015,
    "h": 213.5
  },
  "luminance": 0.04151
}

Semantic roles & 50–950 ramp

primary

#123F48

secondary

#814135

accent

#5F45E3

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#040809

muted

#797B7B

Preview Lab

Preview with #123F48

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

Preview Lab → · Contrast checker → · Palette generator →