#123C55#123C55

#123C55 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.063 H 239.0°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#123C55
RGB	rgb(18, 60, 85)
HSL	hsl(202, 65%, 20%)
HSV	hsv(202, 79%, 33%)
CMYK	cmyk(78.8%, 29.4%, 0%, 66.7%)
CIE-LAB	lab(23.72, -4.81, -19.22)
CIE-LCH	lch(23.72, 19.81, 255.96°)
OKLab	oklab(34.01% -0.0326 -0.0542)
OKLCH	oklch(34.01% 0.063 239)
XYZ	xyz(3.5044, 4.0158, 9.1830)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C55 #552B12

analogous

#12554C #123C55 #121A55

triadic

#123C55 #55123C #3C5512

tetradic

#123C55 #4C1255 #552B12 #1A5512

square

#123C55 #4C1255 #552B12 #1A5512

split-complementary

#123C55 #55121A #554C12

monochromatic

#051219 #071822 #123C55 #1D6088 #2783BA

Accessibility & contrast

On white

11.65

#123C55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#123C55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C55

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C55	#FFFFFF	#000000	##FFFFFF
##123C55	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303C56

Deuteranopia (green-blind)

#273655

Tritanopia (blue-blind)

#004245

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #123c55;
/* rgb */ color: rgb(18, 60, 85);
/* oklch */ color: oklch(34.0% 0.063 239.0);

Tailwind

colors: {
  custom: {
    50: '#5a7185',
    500: '#123c55',
    950: '#000000',
  },
}

SCSS

$custom: #123c55;
$custom-light: #5a7185;
$custom-dark: #000000;

JSON

{
  "hex": "#123c55",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 85
  },
  "hsl": {
    "h": 202.388,
    "s": 65.049,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34013,
    "c": 0.0633,
    "h": 239
  },
  "luminance": 0.04016
}

Semantic roles & 50–950 ramp

primary

#123C55

secondary

#8E5635

accent

#7F40E8

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #123C55

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

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