#183A67#183A67

#183A67 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.9% C 0.088 H 256.4°. Best body text is #FFFFFF at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#183A67
RGB	rgb(24, 58, 103)
HSL	hsl(214, 62%, 25%)
HSV	hsv(214, 77%, 40%)
CMYK	cmyk(76.7%, 43.7%, 0%, 59.6%)
CIE-LAB	lab(24.32, 4.88, -29.99)
CIE-LCH	lch(24.32, 30.39, 279.24°)
OKLab	oklab(34.88% -0.0207 -0.0857)
OKLCH	oklch(34.88% 0.088 256.4)
XYZ	xyz(4.3370, 4.1991, 13.4113)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A67 #674518

analogous

#186267 #183A67 #1D1867

triadic

#183A67 #67183A #3A6718

tetradic

#183A67 #671862 #674518 #18671D

square

#183A67 #671862 #674518 #18671D

split-complementary

#183A67 #671D18 #626718

monochromatic

#060E19 #0C1E35 #183A67 #245699 #2F72CA

Accessibility & contrast

On white

11.41

#183A67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#183A67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A67

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A67	#FFFFFF	#000000	##FFFFFF
##183A67	1.00	11.41	1.84	11.41
#FFFFFF	11.41	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253E69

Deuteranopia (green-blind)

#183666

Tritanopia (blue-blind)

#00454B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183a67;
/* rgb */ color: rgb(24, 58, 103);
/* oklch */ color: oklch(34.9% 0.088 256.4);

Tailwind

colors: {
  custom: {
    50: '#616f93',
    500: '#183a67',
    950: '#000000',
  },
}

SCSS

$custom: #183a67;
$custom-light: #616f93;
$custom-dark: #000000;

JSON

{
  "hex": "#183a67",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 103
  },
  "hsl": {
    "h": 214.177,
    "s": 62.205,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34884,
    "c": 0.08812,
    "h": 256.4
  },
  "luminance": 0.042
}

Semantic roles & 50–950 ramp

primary

#183A67

secondary

#9D743E

accent

#9F43E5

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #183A67

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

Preview Lab → · Contrast checker → · Palette generator →