#18216E#18216E

#18216E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 29.9% C 0.132 H 270.6°. Best body text is #FFFFFF at 14.17:1 contrast (WCAG AA passes).

Color values

HEX	#18216E
RGB	rgb(24, 33, 110)
HSL	hsl(234, 64%, 26%)
HSV	hsv(234, 78%, 43%)
CMYK	cmyk(78.2%, 70%, 0%, 56.9%)
CIE-LAB	lab(17.49, 25.60, -45.58)
CIE-LCH	lch(17.49, 52.28, 299.32°)
OKLab	oklab(29.91% 0.0014 -0.1318)
OKLCH	oklch(29.91% 0.132 270.6)
XYZ	xyz(3.7341, 2.4073, 15.0167)
Luminance	0.0241 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18216E #6E6518

analogous

#184C6E #18216E #3A186E

triadic

#18216E #6E1821 #216E18

tetradic

#18216E #6E184C #6E6518 #186E3A

square

#18216E #6E184C #6E6518 #186E3A

split-complementary

#18216E #6E3A18 #4C6E18

monochromatic

#050819 #0D123C #18216E #2330A0 #2F40D2

Accessibility & contrast

On white

14.17

#18216E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#18216E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18216E

14.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18216E	#FFFFFF	#000000	##FFFFFF
##18216E	1.00	14.17	1.48	14.17
#FFFFFF	14.17	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F70

Deuteranopia (green-blind)

#00276D

Tritanopia (blue-blind)

#003644

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #18216e;
/* rgb */ color: rgb(24, 33, 110);
/* oklch */ color: oklch(29.9% 0.132 270.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#18216e",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 110
  },
  "hsl": {
    "h": 233.721,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.29908,
    "c": 0.13186,
    "h": 270.6
  },
  "luminance": 0.02408
}

Semantic roles & 50–950 ramp

primary

#18216E

secondary

#A4993E

accent

#D641E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #18216E

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

Preview Lab → · Contrast checker → · Palette generator →