#183456#183456

#183456 is a dark, moderate cyan. Relative luminance 0.033; OKLCH L 32.2% C 0.070 H 254.5°. Best body text is #FFFFFF at 12.62:1 contrast (WCAG AA passes).

Color values

HEX	#183456
RGB	rgb(24, 52, 86)
HSL	hsl(213, 56%, 22%)
HSV	hsv(213, 72%, 34%)
CMYK	cmyk(72.1%, 39.5%, 0%, 66.3%)
CIE-LAB	lab(21.29, 2.12, -23.69)
CIE-LCH	lch(21.29, 23.79, 275.11°)
OKLab	oklab(32.18% -0.0186 -0.0673)
OKLCH	oklch(32.18% 0.07 254.5)
XYZ	xyz(3.2838, 3.3217, 9.2704)
Luminance	0.0332 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183456 #563A18

analogous

#185356 #183456 #1B1856

triadic

#183456 #561834 #345618

tetradic

#183456 #561853 #563A18 #18561B

square

#183456 #561853 #563A18 #18561B

split-complementary

#183456 #561B18 #535618

monochromatic

#070E18 #0B1726 #183456 #255186 #336EB6

Accessibility & contrast

On white

12.62

#183456 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#183456 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183456

12.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183456	#FFFFFF	#000000	##FFFFFF
##183456	1.00	12.62	1.66	12.62
#FFFFFF	12.62	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253657

Deuteranopia (green-blind)

#1C3055

Tritanopia (blue-blind)

#003C41

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #183456;
/* rgb */ color: rgb(24, 52, 86);
/* oklch */ color: oklch(32.2% 0.070 254.5);

Tailwind

colors: {
  custom: {
    50: '#5d6b86',
    500: '#183456',
    950: '#000000',
  },
}

SCSS

$custom: #183456;
$custom-light: #5d6b86;
$custom-dark: #000000;

JSON

{
  "hex": "#183456",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 86
  },
  "hsl": {
    "h": 212.903,
    "s": 56.364,
    "l": 21.569
  },
  "oklch": {
    "l": 0.32179,
    "c": 0.06982,
    "h": 254.5
  },
  "luminance": 0.03322
}

Semantic roles & 50–950 ramp

primary

#183456

secondary

#8D693D

accent

#9B48E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #183456

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

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