#181777#181777

#181777 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.3% C 0.155 H 271.9°. Best body text is #FFFFFF at 14.71:1 contrast (WCAG AA passes).

Color values

HEX	#181777
RGB	rgb(24, 23, 119)
HSL	hsl(241, 68%, 28%)
HSV	hsv(241, 81%, 47%)
CMYK	cmyk(79.8%, 80.7%, 0%, 53.3%)
CIE-LAB	lab(16.20, 35.30, -53.54)
CIE-LCH	lch(16.20, 64.13, 303.40°)
OKLab	oklab(29.28% 0.0051 -0.155)
OKLCH	oklch(29.28% 0.155 271.9)
XYZ	xyz(4.0117, 2.1385, 17.6505)
Luminance	0.0214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181777 #767717

analogous

#174677 #181777 #481777

triadic

#181777 #771817 #177718

tetradic

#181777 #771746 #767717 #177748

square

#181777 #771746 #767717 #177748

split-complementary

#181777 #774817 #467717

monochromatic

#05051A #0E0D44 #181777 #2221AA #3331D7

Accessibility & contrast

On white

14.71

#181777 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#181777 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181777

14.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181777	#FFFFFF	#000000	##FFFFFF
##181777	1.00	14.71	1.43	14.71
#FFFFFF	14.71	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7A

Deuteranopia (green-blind)

#002375

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #181777;
/* rgb */ color: rgb(24, 23, 119);
/* oklch */ color: oklch(29.3% 0.155 271.9);

Tailwind

colors: {
  custom: {
    50: '#68569f',
    500: '#181777',
    950: '#000000',
  },
}

SCSS

$custom: #181777;
$custom-light: #68569f;
$custom-dark: #000000;

JSON

{
  "hex": "#181777",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 119
  },
  "hsl": {
    "h": 240.625,
    "s": 67.606,
    "l": 27.843
  },
  "oklch": {
    "l": 0.29277,
    "c": 0.15506,
    "h": 271.9
  },
  "luminance": 0.02139
}

Semantic roles & 50–950 ramp

primary

#181777

secondary

#ABAC3E

accent

#EA3DE9

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #181777

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

Preview Lab → · Contrast checker → · Palette generator →