#183756#183756

#183756 is a dark, moderate cyan. Relative luminance 0.036; OKLCH L 33.0% C 0.066 H 250.5°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).

Color values

HEX	#183756
RGB	rgb(24, 55, 86)
HSL	hsl(210, 56%, 22%)
HSV	hsv(210, 72%, 34%)
CMYK	cmyk(72.1%, 36%, 0%, 66.3%)
CIE-LAB	lab(22.30, 0.03, -22.10)
CIE-LCH	lch(22.30, 22.10, 270.09°)
OKLab	oklab(32.97% -0.0221 -0.0626)
OKLCH	oklch(32.97% 0.066 250.5)
XYZ	xyz(3.4220, 3.5981, 9.3165)
Luminance	0.0360 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183756 #563718

analogous

#185656 #183756 #181856

triadic

#183756 #561837 #375618

tetradic

#183756 #561856 #563718 #185618

square

#183756 #561856 #563718 #185618

split-complementary

#183756 #561818 #565618

monochromatic

#070F18 #0B1826 #183756 #255686 #3374B6

Accessibility & contrast

On white

12.21

#183756 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#183756 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183756

12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183756	#FFFFFF	#000000	##FFFFFF
##183756	1.00	12.21	1.72	12.21
#FFFFFF	12.21	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293957

Deuteranopia (green-blind)

#213355

Tritanopia (blue-blind)

#003E42

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #183756;
/* rgb */ color: rgb(24, 55, 86);
/* oklch */ color: oklch(33.0% 0.066 250.5);

Tailwind

colors: {
  custom: {
    50: '#5d6d86',
    500: '#183756',
    950: '#000000',
  },
}

SCSS

$custom: #183756;
$custom-light: #5d6d86;
$custom-dark: #000000;

JSON

{
  "hex": "#183756",
  "rgb": {
    "r": 24,
    "g": 55,
    "b": 86
  },
  "hsl": {
    "h": 210,
    "s": 56.364,
    "l": 21.569
  },
  "oklch": {
    "l": 0.32967,
    "c": 0.06641,
    "h": 250.5
  },
  "luminance": 0.03598
}

Semantic roles & 50–950 ramp

primary

#183756

secondary

#8D653D

accent

#9448E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #183756

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

Preview Lab → · Contrast checker → · Palette generator →