#183877#183877

#183877 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.115 H 262.1°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#183877
RGB	rgb(24, 56, 119)
HSL	hsl(220, 66%, 28%)
HSV	hsv(220, 80%, 47%)
CMYK	cmyk(79.8%, 52.9%, 0%, 53.3%)
CIE-LAB	lab(24.81, 12.93, -39.45)
CIE-LCH	lch(24.81, 41.51, 288.15°)
OKLab	oklab(35.62% -0.0158 -0.1135)
OKLCH	oklch(35.62% 0.115 262.1)
XYZ	xyz(5.1194, 4.3539, 18.0198)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183877 #775718

analogous

#186877 #183877 #271877

triadic

#183877 #771838 #387718

tetradic

#183877 #771868 #775718 #187727

square

#183877 #771868 #775718 #187727

split-complementary

#183877 #772718 #687718

monochromatic

#050C19 #0E2044 #183877 #2250AA #336AD6

Accessibility & contrast

On white

11.23

#183877 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#183877 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183877

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183877	#FFFFFF	#000000	##FFFFFF
##183877	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#103F79

Deuteranopia (green-blind)

#003776

Tritanopia (blue-blind)

#004752

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183877;
/* rgb */ color: rgb(24, 56, 119);
/* oklch */ color: oklch(35.6% 0.115 262.1);

Tailwind

colors: {
  custom: {
    50: '#656e9f',
    500: '#183877',
    950: '#000000',
  },
}

SCSS

$custom: #183877;
$custom-light: #656e9f;
$custom-dark: #000000;

JSON

{
  "hex": "#183877",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 119
  },
  "hsl": {
    "h": 219.789,
    "s": 66.434,
    "l": 28.039
  },
  "oklch": {
    "l": 0.35618,
    "c": 0.11459,
    "h": 262.1
  },
  "luminance": 0.04354
}

Semantic roles & 50–950 ramp

primary

#183877

secondary

#AC873F

accent

#B03EE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #183877

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

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