#183855#183855

#183855 is a dark, moderate cyan. Relative luminance 0.037; OKLCH L 33.2% C 0.064 H 248.3°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#183855
RGB	rgb(24, 56, 85)
HSL	hsl(209, 56%, 21%)
HSV	hsv(209, 72%, 33%)
CMYK	cmyk(71.8%, 34.1%, 0%, 66.7%)
CIE-LAB	lab(22.58, -1.05, -21.00)
CIE-LCH	lch(22.58, 21.03, 267.13°)
OKLab	oklab(33.17% -0.0237 -0.0594)
OKLCH	oklch(33.17% 0.064 248.3)
XYZ	xyz(3.4299, 3.6781, 9.1217)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183855 #553518

analogous

#185554 #183855 #181A55

triadic

#183855 #551838 #385518

tetradic

#183855 #541855 #553518 #1A5518

square

#183855 #541855 #553518 #1A5518

split-complementary

#183855 #55181A #555418

monochromatic

#071018 #0B1925 #183855 #255785 #3377B4

Accessibility & contrast

On white

12.10

#183855 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#183855 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183855

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183855	#FFFFFF	#000000	##FFFFFF
##183855	1.00	12.10	1.74	12.10
#FFFFFF	12.10	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3956

Deuteranopia (green-blind)

#233354

Tritanopia (blue-blind)

#003F42

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #183855;
/* rgb */ color: rgb(24, 56, 85);
/* oklch */ color: oklch(33.2% 0.064 248.3);

Tailwind

colors: {
  custom: {
    50: '#5d6e85',
    500: '#183855',
    950: '#000000',
  },
}

SCSS

$custom: #183855;
$custom-light: #5d6e85;
$custom-dark: #000000;

JSON

{
  "hex": "#183855",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 85
  },
  "hsl": {
    "h": 208.525,
    "s": 55.963,
    "l": 21.373
  },
  "oklch": {
    "l": 0.3317,
    "c": 0.06392,
    "h": 248.3
  },
  "luminance": 0.03678
}

Semantic roles & 50–950 ramp

primary

#183855

secondary

#8C623D

accent

#9049DF

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #183855

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

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