#183977#183977

#183977 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.113 H 261.5°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#183977
RGB	rgb(24, 57, 119)
HSL	hsl(219, 66%, 28%)
HSV	hsv(219, 80%, 47%)
CMYK	cmyk(79.8%, 52.1%, 0%, 53.3%)
CIE-LAB	lab(25.11, 12.22, -38.96)
CIE-LCH	lch(25.11, 40.83, 287.42°)
OKLab	oklab(35.85% -0.0167 -0.112)
OKLCH	oklch(35.85% 0.113 261.5)
XYZ	xyz(5.1684, 4.4518, 18.0361)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183977 #775618

analogous

#186877 #183977 #261877

triadic

#183977 #771839 #397718

tetradic

#183977 #771868 #775618 #187726

square

#183977 #771868 #775618 #187726

split-complementary

#183977 #772618 #687718

monochromatic

#050C19 #0E2144 #183977 #2251AA #336CD6

Accessibility & contrast

On white

11.11

#183977 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#183977 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183977

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183977	#FFFFFF	#000000	##FFFFFF
##183977	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134079

Deuteranopia (green-blind)

#003776

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183977;
/* rgb */ color: rgb(24, 57, 119);
/* oklch */ color: oklch(35.9% 0.113 261.5);

Tailwind

colors: {
  custom: {
    50: '#656e9f',
    500: '#183977',
    950: '#000000',
  },
}

SCSS

$custom: #183977;
$custom-light: #656e9f;
$custom-dark: #000000;

JSON

{
  "hex": "#183977",
  "rgb": {
    "r": 24,
    "g": 57,
    "b": 119
  },
  "hsl": {
    "h": 219.158,
    "s": 66.434,
    "l": 28.039
  },
  "oklch": {
    "l": 0.3585,
    "c": 0.11327,
    "h": 261.5
  },
  "luminance": 0.04452
}

Semantic roles & 50–950 ramp

primary

#183977

secondary

#AC863F

accent

#AE3EE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #183977

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

Preview Lab → · Contrast checker → · Palette generator →