#123B4F#123B4F

#123B4F is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.4% C 0.057 H 233.5°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#123B4F
RGB	rgb(18, 59, 79)
HSL	hsl(200, 63%, 19%)
HSV	hsv(200, 77%, 31%)
CMYK	cmyk(77.2%, 25.3%, 0%, 69%)
CIE-LAB	lab(23.07, -6.55, -16.28)
CIE-LCH	lch(23.07, 17.54, 248.09°)
OKLab	oklab(33.39% -0.0339 -0.0457)
OKLCH	oklch(33.39% 0.057 233.5)
XYZ	xyz(3.2241, 3.8207, 7.9632)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B4F #4F2612

analogous

#124F45 #123B4F #121D4F

triadic

#123B4F #4F123B #3B4F12

tetradic

#123B4F #45124F #4F2612 #1D4F12

square

#123B4F #45124F #4F2612 #1D4F12

split-complementary

#123B4F #4F121D #4F4512

monochromatic

#061319 #07161D #123B4F #1D6081 #2985B3

Accessibility & contrast

On white

11.90

#123B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#123B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B4F

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B4F	#FFFFFF	#000000	##FFFFFF
##123B4F	1.00	11.90	1.76	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313A50

Deuteranopia (green-blind)

#29344F

Tritanopia (blue-blind)

#004042

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #123b4f;
/* rgb */ color: rgb(18, 59, 79);
/* oklch */ color: oklch(33.4% 0.057 233.5);

Tailwind

colors: {
  custom: {
    50: '#597080',
    500: '#123b4f',
    950: '#000000',
  },
}

SCSS

$custom: #123b4f;
$custom-light: #597080;
$custom-dark: #000000;

JSON

{
  "hex": "#123b4f",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 79
  },
  "hsl": {
    "h": 199.672,
    "s": 62.887,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33392,
    "c": 0.05692,
    "h": 233.5
  },
  "luminance": 0.03821
}

Semantic roles & 50–950 ramp

primary

#123B4F

secondary

#885035

accent

#7842E6

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #123B4F

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

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