#181779#181779

#181779 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.158 H 271.7°. Best body text is #FFFFFF at 14.61:1 contrast (WCAG AA passes).

Color values

HEX	#181779
RGB	rgb(24, 23, 121)
HSL	hsl(241, 68%, 28%)
HSV	hsv(241, 81%, 47%)
CMYK	cmyk(80.2%, 81%, 0%, 52.5%)
CIE-LAB	lab(16.44, 36.00, -54.42)
CIE-LCH	lch(16.44, 65.25, 303.48°)
OKLab	oklab(29.52% 0.0047 -0.1575)
OKLCH	oklch(29.52% 0.158 271.7)
XYZ	xyz(4.1331, 2.1870, 18.2898)
Luminance	0.0219 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181779 #787917

analogous

#174779 #181779 #491779

triadic

#181779 #791817 #177918

tetradic

#181779 #791747 #787917 #177949

square

#181779 #791747 #787917 #177949

split-complementary

#181779 #794917 #477917

monochromatic

#05051A #0E0D46 #181779 #2221AC #3432D8

Accessibility & contrast

On white

14.61

#181779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#181779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181779

14.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181779	#FFFFFF	#000000	##FFFFFF
##181779	1.00	14.61	1.44	14.61
#FFFFFF	14.61	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7C

Deuteranopia (green-blind)

#002477

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #181779;
/* rgb */ color: rgb(24, 23, 121);
/* oklch */ color: oklch(29.5% 0.158 271.7);

Tailwind

colors: {
  custom: {
    50: '#6856a1',
    500: '#181779',
    950: '#000000',
  },
}

SCSS

$custom: #181779;
$custom-light: #6856a1;
$custom-dark: #000000;

JSON

{
  "hex": "#181779",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 121
  },
  "hsl": {
    "h": 240.612,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29518,
    "c": 0.15761,
    "h": 271.7
  },
  "luminance": 0.02187
}

Semantic roles & 50–950 ramp

primary

#181779

secondary

#ADAE3E

accent

#EB3DE9

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #181779

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

Preview Lab → · Contrast checker → · Palette generator →