#183447#183447

#183447 is a dark, muted cyan. Relative luminance 0.031; OKLCH L 31.3% C 0.048 H 240.4°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#183447
RGB	rgb(24, 52, 71)
HSL	hsl(204, 49%, 19%)
HSV	hsv(204, 66%, 28%)
CMYK	cmyk(66.2%, 26.8%, 0%, 72.2%)
CIE-LAB	lab(20.46, -3.81, -14.96)
CIE-LCH	lch(20.46, 15.44, 255.71°)
OKLab	oklab(31.25% -0.0238 -0.0419)
OKLCH	oklch(31.25% 0.048 240.4)
XYZ	xyz(2.7416, 3.1049, 6.4148)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183447 #472B18

analogous

#184742 #183447 #181C47

triadic

#183447 #471834 #344718

tetradic

#183447 #421847 #472B18 #1C4718

square

#183447 #421847 #472B18 #1C4718

split-complementary

#183447 #47181C #474218

monochromatic

#081117 #091219 #183447 #275575 #3777A2

Accessibility & contrast

On white

12.95

#183447 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#183447 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183447

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183447	#FFFFFF	#000000	##FFFFFF
##183447	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3448

Deuteranopia (green-blind)

#252F47

Tritanopia (blue-blind)

#00393A

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #183447;
/* rgb */ color: rgb(24, 52, 71);
/* oklch */ color: oklch(31.3% 0.048 240.4);

Tailwind

colors: {
  custom: {
    50: '#5a6b7a',
    500: '#183447',
    950: '#000000',
  },
}

SCSS

$custom: #183447;
$custom-light: #5a6b7a;
$custom-dark: #000000;

JSON

{
  "hex": "#183447",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 71
  },
  "hsl": {
    "h": 204.255,
    "s": 49.474,
    "l": 18.627
  },
  "oklch": {
    "l": 0.31254,
    "c": 0.04823,
    "h": 240.4
  },
  "luminance": 0.03105
}

Semantic roles & 50–950 ramp

primary

#183447

secondary

#7E573D

accent

#874FD9

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#040609

muted

#797A7B

Preview Lab

Preview with #183447

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

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