#183677#183677

#183677 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.2% C 0.117 H 263.1°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#183677
RGB	rgb(24, 54, 119)
HSL	hsl(221, 66%, 28%)
HSV	hsv(221, 80%, 47%)
CMYK	cmyk(79.8%, 54.6%, 0%, 53.3%)
CIE-LAB	lab(24.21, 14.35, -40.42)
CIE-LCH	lch(24.21, 42.89, 289.55°)
OKLab	oklab(35.16% -0.0141 -0.1164)
OKLCH	oklch(35.16% 0.117 263.1)
XYZ	xyz(5.0244, 4.1639, 17.9881)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183677 #775918

analogous

#186577 #183677 #2A1877

triadic

#183677 #771836 #367718

tetradic

#183677 #771865 #775918 #18772A

square

#183677 #771865 #775918 #18772A

split-complementary

#183677 #772A18 #657718

monochromatic

#050C19 #0E1F44 #183677 #224DAA #3367D6

Accessibility & contrast

On white

11.46

#183677 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#183677 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183677

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183677	#FFFFFF	#000000	##FFFFFF
##183677	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#083E79

Deuteranopia (green-blind)

#003576

Tritanopia (blue-blind)

#004651

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183677;
/* rgb */ color: rgb(24, 54, 119);
/* oklch */ color: oklch(35.2% 0.117 263.1);

Tailwind

colors: {
  custom: {
    50: '#656c9f',
    500: '#183677',
    950: '#000000',
  },
}

SCSS

$custom: #183677;
$custom-light: #656c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#183677",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 119
  },
  "hsl": {
    "h": 221.053,
    "s": 66.434,
    "l": 28.039
  },
  "oklch": {
    "l": 0.3516,
    "c": 0.11726,
    "h": 263.1
  },
  "luminance": 0.04164
}

Semantic roles & 50–950 ramp

primary

#183677

secondary

#AC8A3F

accent

#B33EE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #183677

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

Preview Lab → · Contrast checker → · Palette generator →