#183D67#183D67

#183D67 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.6% C 0.084 H 253.7°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#183D67
RGB	rgb(24, 61, 103)
HSL	hsl(212, 62%, 25%)
HSV	hsv(212, 77%, 40%)
CMYK	cmyk(76.7%, 40.8%, 0%, 59.6%)
CIE-LAB	lab(25.29, 2.80, -28.45)
CIE-LCH	lch(25.29, 28.58, 275.62°)
OKLab	oklab(35.64% -0.0238 -0.0811)
OKLCH	oklch(35.64% 0.084 253.7)
XYZ	xyz(4.4927, 4.5105, 13.4632)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D67 #674218

analogous

#186467 #183D67 #1B1867

triadic

#183D67 #67183D #3D6718

tetradic

#183D67 #671864 #674218 #18671B

square

#183D67 #671864 #674218 #18671B

split-complementary

#183D67 #671B18 #646718

monochromatic

#060F19 #0C2035 #183D67 #245A99 #2F78CA

Accessibility & contrast

On white

11.04

#183D67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#183D67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D67

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D67	#FFFFFF	#000000	##FFFFFF
##183D67	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)

#2A4069

Deuteranopia (green-blind)

#1D3966

Tritanopia (blue-blind)

#00474D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183d67;
/* rgb */ color: rgb(24, 61, 103);
/* oklch */ color: oklch(35.6% 0.084 253.7);

Tailwind

colors: {
  custom: {
    50: '#617292',
    500: '#183d67',
    950: '#000000',
  },
}

SCSS

$custom: #183d67;
$custom-light: #617292;
$custom-dark: #000000;

JSON

{
  "hex": "#183d67",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 103
  },
  "hsl": {
    "h": 211.899,
    "s": 62.205,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35641,
    "c": 0.08448,
    "h": 253.7
  },
  "luminance": 0.04511
}

Semantic roles & 50–950 ramp

primary

#183D67

secondary

#9D703E

accent

#9943E5

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #183D67

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

Preview Lab → · Contrast checker → · Palette generator →