#123B56#123B56

#123B56 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.8% C 0.065 H 241.6°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#123B56
RGB	rgb(18, 59, 86)
HSL	hsl(204, 65%, 20%)
HSV	hsv(204, 79%, 34%)
CMYK	cmyk(79.1%, 31.4%, 0%, 66.3%)
CIE-LAB	lab(23.43, -3.74, -20.33)
CIE-LCH	lch(23.43, 20.67, 259.58°)
OKLab	oklab(33.8% -0.0311 -0.0575)
OKLCH	oklch(33.8% 0.065 241.6)
XYZ	xyz(3.4925, 3.9280, 9.3764)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B56 #562D12

analogous

#12564F #123B56 #121956

triadic

#123B56 #56123B #3B5612

tetradic

#123B56 #4F1256 #562D12 #195612

square

#123B56 #4F1256 #562D12 #195612

split-complementary

#123B56 #561219 #564F12

monochromatic

#051119 #071823 #123B56 #1D5E89 #2780BB

Accessibility & contrast

On white

11.76

#123B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#123B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B56

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B56	#FFFFFF	#000000	##FFFFFF
##123B56	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3B57

Deuteranopia (green-blind)

#253556

Tritanopia (blue-blind)

#004244

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #123b56;
/* rgb */ color: rgb(18, 59, 86);
/* oklch */ color: oklch(33.8% 0.065 241.6);

Tailwind

colors: {
  custom: {
    50: '#5b7085',
    500: '#123b56',
    950: '#000000',
  },
}

SCSS

$custom: #123b56;
$custom-light: #5b7085;
$custom-dark: #000000;

JSON

{
  "hex": "#123b56",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 86
  },
  "hsl": {
    "h": 203.824,
    "s": 65.385,
    "l": 20.392
  },
  "oklch": {
    "l": 0.33799,
    "c": 0.06537,
    "h": 241.6
  },
  "luminance": 0.03928
}

Semantic roles & 50–950 ramp

primary

#123B56

secondary

#8F5935

accent

#833FE8

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #123B56

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

Preview Lab → · Contrast checker → · Palette generator →