#183B49#183B49

#183B49 is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.3% C 0.047 H 227.0°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#183B49
RGB	rgb(24, 59, 73)
HSL	hsl(197, 51%, 19%)
HSV	hsv(197, 67%, 29%)
CMYK	cmyk(67.1%, 19.2%, 0%, 71.4%)
CIE-LAB	lab(23.01, -7.66, -12.37)
CIE-LCH	lch(23.01, 14.55, 238.24°)
OKLab	oklab(33.31% -0.0321 -0.0345)
OKLCH	oklch(33.31% 0.047 227)
XYZ	xyz(3.1428, 3.8028, 6.8704)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183B49 #492618

analogous

#18493F #183B49 #182349

triadic

#183B49 #49183B #3B4918

tetradic

#183B49 #3F1849 #492618 #234918

square

#183B49 #3F1849 #492618 #234918

split-complementary

#183B49 #491823 #493F18

monochromatic

#081317 #09161B #183B49 #276077 #3685A5

Accessibility & contrast

On white

11.93

#183B49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#183B49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B49

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B49	#FFFFFF	#000000	##FFFFFF
##183B49	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343A4A

Deuteranopia (green-blind)

#2D3549

Tritanopia (blue-blind)

#003F40

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183b49;
/* rgb */ color: rgb(24, 59, 73);
/* oklch */ color: oklch(33.3% 0.047 227.0);

Tailwind

colors: {
  custom: {
    50: '#5b717b',
    500: '#183b49',
    950: '#000000',
  },
}

SCSS

$custom: #183b49;
$custom-light: #5b717b;
$custom-dark: #000000;

JSON

{
  "hex": "#183b49",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 73
  },
  "hsl": {
    "h": 197.143,
    "s": 50.515,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33313,
    "c": 0.04713,
    "h": 227
  },
  "luminance": 0.03803
}

Semantic roles & 50–950 ramp

primary

#183B49

secondary

#80503D

accent

#764EDA

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #183B49

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

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