#123C56#123C56

#123C56 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.1% C 0.065 H 240.0°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#123C56
RGB	rgb(18, 60, 86)
HSL	hsl(203, 65%, 20%)
HSV	hsv(203, 79%, 34%)
CMYK	cmyk(79.1%, 30.2%, 0%, 66.3%)
CIE-LAB	lab(23.78, -4.40, -19.79)
CIE-LCH	lch(23.78, 20.28, 257.46°)
OKLab	oklab(34.07% -0.0323 -0.0559)
OKLCH	oklch(34.07% 0.065 240)
XYZ	xyz(3.5444, 4.0318, 9.3937)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C56 #562C12

analogous

#12564E #123C56 #121A56

triadic

#123C56 #56123C #3C5612

tetradic

#123C56 #4E1256 #562C12 #1A5612

square

#123C56 #4E1256 #562C12 #1A5612

split-complementary

#123C56 #56121A #564E12

monochromatic

#051219 #071923 #123C56 #1D5F89 #2783BB

Accessibility & contrast

On white

11.63

#123C56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#123C56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C56

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C56	#FFFFFF	#000000	##FFFFFF
##123C56	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303C57

Deuteranopia (green-blind)

#273656

Tritanopia (blue-blind)

#004345

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #123c56;
/* rgb */ color: rgb(18, 60, 86);
/* oklch */ color: oklch(34.1% 0.065 240.0);

Tailwind

colors: {
  custom: {
    50: '#5b7185',
    500: '#123c56',
    950: '#000000',
  },
}

SCSS

$custom: #123c56;
$custom-light: #5b7185;
$custom-dark: #000000;

JSON

{
  "hex": "#123c56",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 86
  },
  "hsl": {
    "h": 202.941,
    "s": 65.385,
    "l": 20.392
  },
  "oklch": {
    "l": 0.34072,
    "c": 0.06454,
    "h": 240
  },
  "luminance": 0.04032
}

Semantic roles & 50–950 ramp

primary

#123C56

secondary

#8F5735

accent

#803FE8

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #123C56

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

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