#183B68#183B68

#183B68 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.2% C 0.088 H 256.0°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#183B68
RGB	rgb(24, 59, 104)
HSL	hsl(214, 63%, 25%)
HSV	hsv(214, 77%, 41%)
CMYK	cmyk(76.9%, 43.3%, 0%, 59.2%)
CIE-LAB	lab(24.71, 4.60, -30.02)
CIE-LCH	lch(24.71, 30.37, 278.70°)
OKLab	oklab(35.21% -0.0214 -0.0857)
OKLCH	oklch(35.21% 0.088 256)
XYZ	xyz(4.4384, 4.3211, 13.6942)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183B68 #684518

analogous

#186368 #183B68 #1D1868

triadic

#183B68 #68183B #3B6818

tetradic

#183B68 #681863 #684518 #18681D

square

#183B68 #681863 #684518 #18681D

split-complementary

#183B68 #681D18 #636818

monochromatic

#060E19 #0D1F36 #183B68 #23579A #2F73CB

Accessibility & contrast

On white

11.26

#183B68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#183B68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B68

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B68	#FFFFFF	#000000	##FFFFFF
##183B68	1.00	11.26	1.86	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263F6A

Deuteranopia (green-blind)

#193767

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183b68;
/* rgb */ color: rgb(24, 59, 104);
/* oklch */ color: oklch(35.2% 0.088 256.0);

Tailwind

colors: {
  custom: {
    50: '#617093',
    500: '#183b68',
    950: '#000000',
  },
}

SCSS

$custom: #183b68;
$custom-light: #617093;
$custom-dark: #000000;

JSON

{
  "hex": "#183b68",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 104
  },
  "hsl": {
    "h": 213.75,
    "s": 62.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35205,
    "c": 0.08836,
    "h": 256
  },
  "luminance": 0.04322
}

Semantic roles & 50–950 ramp

primary

#183B68

secondary

#9E743E

accent

#9E42E6

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #183B68

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

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