#123558#123558

#123558 is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.3% C 0.074 H 251.2°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#123558
RGB	rgb(18, 53, 88)
HSL	hsl(210, 66%, 21%)
HSV	hsv(210, 80%, 35%)
CMYK	cmyk(79.5%, 39.8%, 0%, 65.5%)
CIE-LAB	lab(21.50, 1.19, -24.70)
CIE-LCH	lch(21.50, 24.72, 272.77°)
OKLab	oklab(32.32% -0.0239 -0.0703)
OKLCH	oklch(32.32% 0.074 251.2)
XYZ	xyz(3.2833, 3.3790, 9.7098)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123558 #583512

analogous

#125858 #123558 #121258

triadic

#123558 #581235 #355812

tetradic

#123558 #581258 #583512 #125812

square

#123558 #581258 #583512 #125812

split-complementary

#123558 #581212 #585812

monochromatic

#050F19 #081625 #123558 #1C548B #2772BE

Accessibility & contrast

On white

12.53

#123558 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#123558 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123558

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123558	#FFFFFF	#000000	##FFFFFF
##123558	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253759

Deuteranopia (green-blind)

#1A3157

Tritanopia (blue-blind)

#003D42

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #123558;
/* rgb */ color: rgb(18, 53, 88);
/* oklch */ color: oklch(32.3% 0.074 251.2);

Tailwind

colors: {
  custom: {
    50: '#5b6b87',
    500: '#123558',
    950: '#000000',
  },
}

SCSS

$custom: #123558;
$custom-light: #5b6b87;
$custom-dark: #000000;

JSON

{
  "hex": "#123558",
  "rgb": {
    "r": 18,
    "g": 53,
    "b": 88
  },
  "hsl": {
    "h": 210,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32317,
    "c": 0.07424,
    "h": 251.2
  },
  "luminance": 0.03379
}

Semantic roles & 50–950 ramp

primary

#123558

secondary

#916335

accent

#943FE9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #123558

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

Preview Lab → · Contrast checker → · Palette generator →