#183A44#183A44

#183A44 is a dark, muted cyan. Relative luminance 0.036; OKLCH L 32.8% C 0.043 H 219.7°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#183A44
RGB	rgb(24, 58, 68)
HSL	hsl(194, 48%, 18%)
HSV	hsv(194, 65%, 27%)
CMYK	cmyk(64.7%, 14.7%, 0%, 73.3%)
CIE-LAB	lab(22.43, -8.84, -9.91)
CIE-LCH	lch(22.43, 13.28, 228.25°)
OKLab	oklab(32.78% -0.0331 -0.0275)
OKLCH	oklch(32.78% 0.043 219.7)
XYZ	xyz(2.9327, 3.6374, 6.0153)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A44 #442218

analogous

#184438 #183A44 #182444

triadic

#183A44 #44183A #3A4418

tetradic

#183A44 #381844 #442218 #244418

square

#183A44 #381844 #442218 #244418

split-complementary

#183A44 #441824 #443818

monochromatic

#081317 #081317 #183A44 #286171 #38879E

Accessibility & contrast

On white

12.16

#183A44 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#183A44 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A44

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A44	#FFFFFF	#000000	##FFFFFF
##183A44	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343845

Deuteranopia (green-blind)

#2D3444

Tritanopia (blue-blind)

#003D3D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #183a44;
/* rgb */ color: rgb(24, 58, 68);
/* oklch */ color: oklch(32.8% 0.043 219.7);

Tailwind

colors: {
  custom: {
    50: '#5a7077',
    500: '#183a44',
    950: '#000000',
  },
}

SCSS

$custom: #183a44;
$custom-light: #5a7077;
$custom-dark: #000000;

JSON

{
  "hex": "#183a44",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 68
  },
  "hsl": {
    "h": 193.636,
    "s": 47.826,
    "l": 18.039
  },
  "oklch": {
    "l": 0.32781,
    "c": 0.04304,
    "h": 219.7
  },
  "luminance": 0.03638
}

Semantic roles & 50–950 ramp

primary

#183A44

secondary

#7B4B3D

accent

#6F50D7

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040708

muted

#797A7B

Preview Lab

Preview with #183A44

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

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