#123559#123559

#123559 is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.4% C 0.076 H 251.9°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#123559
RGB	rgb(18, 53, 89)
HSL	hsl(210, 66%, 21%)
HSV	hsv(210, 80%, 35%)
CMYK	cmyk(79.8%, 40.4%, 0%, 65.1%)
CIE-LAB	lab(21.56, 1.62, -25.26)
CIE-LCH	lch(21.56, 25.31, 273.66°)
OKLab	oklab(32.39% -0.0236 -0.0719)
OKLCH	oklch(32.39% 0.076 251.9)
XYZ	xyz(3.3251, 3.3957, 9.9295)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123559 #593612

analogous

#125859 #123559 #131259

triadic

#123559 #591235 #355912

tetradic

#123559 #591258 #593612 #125913

square

#123559 #591258 #593612 #125913

split-complementary

#123559 #591312 #585912

monochromatic

#050F19 #081726 #123559 #1C538C #2772BF

Accessibility & contrast

On white

12.51

#123559 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#123559 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123559

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123559	#FFFFFF	#000000	##FFFFFF
##123559	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24375A

Deuteranopia (green-blind)

#1A3158

Tritanopia (blue-blind)

#003D42

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #123559;
/* rgb */ color: rgb(18, 53, 89);
/* oklch */ color: oklch(32.4% 0.076 251.9);

Tailwind

colors: {
  custom: {
    50: '#5b6b88',
    500: '#123559',
    950: '#000000',
  },
}

SCSS

$custom: #123559;
$custom-light: #5b6b88;
$custom-dark: #000000;

JSON

{
  "hex": "#123559",
  "rgb": {
    "r": 18,
    "g": 53,
    "b": 89
  },
  "hsl": {
    "h": 210.423,
    "s": 66.355,
    "l": 20.98
  },
  "oklch": {
    "l": 0.32386,
    "c": 0.07572,
    "h": 251.9
  },
  "luminance": 0.03396
}

Semantic roles & 50–950 ramp

primary

#123559

secondary

#926435

accent

#953FE9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #123559

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

Preview Lab → · Contrast checker → · Palette generator →