#183D68#183D68

#183D68 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.7% C 0.086 H 254.1°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#183D68
RGB	rgb(24, 61, 104)
HSL	hsl(212, 63%, 25%)
HSV	hsv(212, 77%, 41%)
CMYK	cmyk(76.9%, 41.3%, 0%, 59.2%)
CIE-LAB	lab(25.35, 3.21, -28.99)
CIE-LCH	lch(25.35, 29.17, 276.32°)
OKLab	oklab(35.71% -0.0235 -0.0827)
OKLCH	oklch(35.71% 0.086 254.1)
XYZ	xyz(4.5432, 4.5307, 13.7291)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D68 #684318

analogous

#186568 #183D68 #1B1868

triadic

#183D68 #68183D #3D6818

tetradic

#183D68 #681865 #684318 #18681B

square

#183D68 #681865 #684318 #18681B

split-complementary

#183D68 #681B18 #656818

monochromatic

#060F19 #0D2036 #183D68 #235A9A #2F77CB

Accessibility & contrast

On white

11.02

#183D68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#183D68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D68

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D68	#FFFFFF	#000000	##FFFFFF
##183D68	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29406A

Deuteranopia (green-blind)

#1D3967

Tritanopia (blue-blind)

#00474D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183d68;
/* rgb */ color: rgb(24, 61, 104);
/* oklch */ color: oklch(35.7% 0.086 254.1);

Tailwind

colors: {
  custom: {
    50: '#617293',
    500: '#183d68',
    950: '#000000',
  },
}

SCSS

$custom: #183d68;
$custom-light: #617293;
$custom-dark: #000000;

JSON

{
  "hex": "#183d68",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 104
  },
  "hsl": {
    "h": 212.25,
    "s": 62.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35709,
    "c": 0.08594,
    "h": 254.1
  },
  "luminance": 0.04531
}

Semantic roles & 50–950 ramp

primary

#183D68

secondary

#9E723E

accent

#9A42E6

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #183D68

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

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