#181780#181780

#181780 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.166 H 271.1°. Best body text is #FFFFFF at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#181780
RGB	rgb(24, 23, 128)
HSL	hsl(241, 70%, 30%)
HSV	hsv(241, 82%, 50%)
CMYK	cmyk(81.3%, 82%, 0%, 49.8%)
CIE-LAB	lab(17.30, 38.40, -57.47)
CIE-LCH	lch(17.30, 69.12, 303.75°)
OKLab	oklab(30.37% 0.0031 -0.1664)
OKLCH	oklch(30.37% 0.166 271.1)
XYZ	xyz(4.5780, 2.3650, 20.6331)
Luminance	0.0237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181780 #7F8017

analogous

#174B80 #181780 #4C1780

triadic

#181780 #801817 #178018

tetradic

#181780 #80174B #7F8017 #17804C

square

#181780 #80174B #7F8017 #17804C

split-complementary

#181780 #804C17 #4B8017

monochromatic

#05051A #0E0E4C #181780 #2220B4 #3836DB

Accessibility & contrast

On white

14.26

#181780 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#181780 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181780

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181780	#FFFFFF	#000000	##FFFFFF
##181780	1.00	14.26	1.47	14.26
#FFFFFF	14.26	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003083

Deuteranopia (green-blind)

#00257E

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181780;
/* rgb */ color: rgb(24, 23, 128);
/* oklch */ color: oklch(30.4% 0.166 271.1);

Tailwind

colors: {
  custom: {
    50: '#6a57a6',
    500: '#181780',
    950: '#000000',
  },
}

SCSS

$custom: #181780;
$custom-light: #6a57a6;
$custom-dark: #000000;

JSON

{
  "hex": "#181780",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 128
  },
  "hsl": {
    "h": 240.571,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.30368,
    "c": 0.1664,
    "h": 271.1
  },
  "luminance": 0.02365
}

Semantic roles & 50–950 ramp

primary

#181780

secondary

#B3B43E

accent

#EC3BEB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #181780

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

Preview Lab → · Contrast checker → · Palette generator →