#18216D#18216D

#18216D is a dark, vivid blue. Relative luminance 0.024; OKLCH L 29.8% C 0.130 H 270.7°. Best body text is #FFFFFF at 14.22:1 contrast (WCAG AA passes).

Color values

HEX	#18216D
RGB	rgb(24, 33, 109)
HSL	hsl(234, 64%, 26%)
HSV	hsv(234, 78%, 43%)
CMYK	cmyk(78%, 69.7%, 0%, 57.3%)
CIE-LAB	lab(17.39, 25.21, -45.10)
CIE-LCH	lch(17.39, 51.67, 299.21°)
OKLab	oklab(29.8% 0.0015 -0.1304)
OKLCH	oklch(29.8% 0.13 270.7)
XYZ	xyz(3.6799, 2.3856, 14.7316)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18216D #6D6418

analogous

#184B6D #18216D #39186D

triadic

#18216D #6D1821 #216D18

tetradic

#18216D #6D184B #6D6418 #186D39

square

#18216D #6D184B #6D6418 #186D39

split-complementary

#18216D #6D3918 #4B6D18

monochromatic

#060819 #0D123B #18216D #23309F #2E40D1

Accessibility & contrast

On white

14.22

#18216D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#18216D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18216D

14.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18216D	#FFFFFF	#000000	##FFFFFF
##18216D	1.00	14.22	1.48	14.22
#FFFFFF	14.22	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F6F

Deuteranopia (green-blind)

#00276C

Tritanopia (blue-blind)

#003544

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #18216d;
/* rgb */ color: rgb(24, 33, 109);
/* oklch */ color: oklch(29.8% 0.130 270.7);

Tailwind

colors: {
  custom: {
    50: '#645c98',
    500: '#18216d',
    950: '#000000',
  },
}

SCSS

$custom: #18216d;
$custom-light: #645c98;
$custom-dark: #000000;

JSON

{
  "hex": "#18216d",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 109
  },
  "hsl": {
    "h": 233.647,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.29804,
    "c": 0.13045,
    "h": 270.7
  },
  "luminance": 0.02386
}

Semantic roles & 50–950 ramp

primary

#18216D

secondary

#A3983E

accent

#D541E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #18216D

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

Preview Lab → · Contrast checker → · Palette generator →