#183C6C#183C6C

#183C6C is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.7% C 0.093 H 256.6°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#183C6C
RGB	rgb(24, 60, 108)
HSL	hsl(214, 64%, 26%)
HSV	hsv(214, 78%, 42%)
CMYK	cmyk(77.8%, 44.4%, 0%, 57.6%)
CIE-LAB	lab(25.28, 5.55, -31.67)
CIE-LCH	lch(25.28, 32.15, 279.94°)
OKLab	oklab(35.74% -0.0215 -0.0905)
OKLCH	oklch(35.74% 0.093 256.6)
XYZ	xyz(4.6983, 4.5081, 14.8070)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C6C #6C4818

analogous

#18666C #183C6C #1E186C

triadic

#183C6C #6C183C #3C6C18

tetradic

#183C6C #6C1866 #6C4818 #186C1E

square

#183C6C #6C1866 #6C4818 #186C1E

split-complementary

#183C6C #6C1E18 #666C18

monochromatic

#060E19 #0D203A #183C6C #23589E #2E74D0

Accessibility & contrast

On white

11.04

#183C6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#183C6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C6C

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C6C	#FFFFFF	#000000	##FFFFFF
##183C6C	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25406E

Deuteranopia (green-blind)

#16386B

Tritanopia (blue-blind)

#00474E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183c6c;
/* rgb */ color: rgb(24, 60, 108);
/* oklch */ color: oklch(35.7% 0.093 256.6);

Tailwind

colors: {
  custom: {
    50: '#627196',
    500: '#183c6c',
    950: '#000000',
  },
}

SCSS

$custom: #183c6c;
$custom-light: #627196;
$custom-dark: #000000;

JSON

{
  "hex": "#183c6c",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 108
  },
  "hsl": {
    "h": 214.286,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35738,
    "c": 0.09306,
    "h": 256.6
  },
  "luminance": 0.04509
}

Semantic roles & 50–950 ramp

primary

#183C6C

secondary

#A2773E

accent

#A041E7

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #183C6C

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

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