#183D6C#183D6C

#183D6C is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 36.0% C 0.092 H 255.8°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#183D6C
RGB	rgb(24, 61, 108)
HSL	hsl(214, 64%, 26%)
HSV	hsv(214, 78%, 42%)
CMYK	cmyk(77.8%, 43.5%, 0%, 57.6%)
CIE-LAB	lab(25.61, 4.85, -31.16)
CIE-LCH	lch(25.61, 31.53, 278.86°)
OKLab	oklab(35.99% -0.0225 -0.089)
OKLCH	oklch(35.99% 0.092 255.8)
XYZ	xyz(4.7512, 4.6139, 14.8246)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D6C #6C4718

analogous

#18676C #183D6C #1D186C

triadic

#183D6C #6C183D #3D6C18

tetradic

#183D6C #6C1867 #6C4718 #186C1D

square

#183D6C #6C1867 #6C4718 #186C1D

split-complementary

#183D6C #6C1D18 #676C18

monochromatic

#060E19 #0D213A #183D6C #23599E #2E76D0

Accessibility & contrast

On white

10.92

#183D6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#183D6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D6C

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D6C	#FFFFFF	#000000	##FFFFFF
##183D6C	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26416E

Deuteranopia (green-blind)

#18396B

Tritanopia (blue-blind)

#00484F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #183d6c;
/* rgb */ color: rgb(24, 61, 108);
/* oklch */ color: oklch(36.0% 0.092 255.8);

Tailwind

colors: {
  custom: {
    50: '#627296',
    500: '#183d6c',
    950: '#000000',
  },
}

SCSS

$custom: #183d6c;
$custom-light: #627296;
$custom-dark: #000000;

JSON

{
  "hex": "#183d6c",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 108
  },
  "hsl": {
    "h": 213.571,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35987,
    "c": 0.09182,
    "h": 255.8
  },
  "luminance": 0.04614
}

Semantic roles & 50–950 ramp

primary

#183D6C

secondary

#A2763E

accent

#9E41E7

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #183D6C

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

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