#181580#181580

#181580 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.168 H 271.3°. Best body text is #FFFFFF at 14.41:1 contrast (WCAG AA passes).

Color values

HEX	#181580
RGB	rgb(24, 21, 128)
HSL	hsl(242, 72%, 29%)
HSV	hsv(242, 84%, 50%)
CMYK	cmyk(81.3%, 83.6%, 0%, 49.8%)
CIE-LAB	lab(16.93, 39.46, -58.07)
CIE-LCH	lch(16.93, 70.21, 304.20°)
OKLab	oklab(30.12% 0.0037 -0.1681)
OKLCH	oklch(30.12% 0.168 271.3)
XYZ	xyz(4.5398, 2.2885, 20.6204)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181580 #7D8015

analogous

#154880 #181580 #4E1580

triadic

#181580 #801815 #158018

tetradic

#181580 #801548 #7D8015 #15804E

square

#181580 #801548 #7D8015 #15804E

split-complementary

#181580 #804E15 #488015

monochromatic

#05041A #0E0C4B #181580 #221EB5 #3732DD

Accessibility & contrast

On white

14.41

#181580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#181580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181580

14.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181580	#FFFFFF	#000000	##FFFFFF
##181580	1.00	14.41	1.46	14.41
#FFFFFF	14.41	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F83

Deuteranopia (green-blind)

#00247E

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #181580;
/* rgb */ color: rgb(24, 21, 128);
/* oklch */ color: oklch(30.1% 0.168 271.3);

Tailwind

colors: {
  custom: {
    50: '#6a55a6',
    500: '#181580',
    950: '#000000',
  },
}

SCSS

$custom: #181580;
$custom-light: #6a55a6;
$custom-dark: #000000;

JSON

{
  "hex": "#181580",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 128
  },
  "hsl": {
    "h": 241.682,
    "s": 71.812,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30115,
    "c": 0.16812,
    "h": 271.3
  },
  "luminance": 0.02289
}

Semantic roles & 50–950 ramp

primary

#181580

secondary

#B2B53C

accent

#EF39E9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #181580

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

Preview Lab → · Contrast checker → · Palette generator →