#18218E#18218E

#18218E is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.4% C 0.174 H 269.1°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#18218E
RGB	rgb(24, 33, 142)
HSL	hsl(235, 71%, 33%)
HSV	hsv(235, 83%, 56%)
CMYK	cmyk(83.1%, 76.8%, 0%, 44.3%)
CIE-LAB	lab(20.96, 37.56, -60.21)
CIE-LCH	lch(20.96, 70.96, 301.96°)
OKLab	oklab(33.43% -0.0027 -0.1744)
OKLCH	oklch(33.43% 0.174 269.1)
XYZ	xyz(5.8014, 3.2342, 25.9044)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18218E #8E8518

analogous

#185C8E #18218E #4A188E

triadic

#18218E #8E1821 #218E18

tetradic

#18218E #8E185C #8E8518 #188E4A

square

#18218E #8E185C #8E8518 #188E4A

split-complementary

#18218E #8E4A18 #5C8E18

monochromatic

#060925 #0F155A #18218E #212DC2 #414DDF

Accessibility & contrast

On white

12.75

#18218E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#18218E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18218E

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18218E	#FFFFFF	#000000	##FFFFFF
##18218E	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003891

Deuteranopia (green-blind)

#002C8C

Tritanopia (blue-blind)

#004156

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #18218e;
/* rgb */ color: rgb(24, 33, 142);
/* oklch */ color: oklch(33.4% 0.174 269.1);

Tailwind

colors: {
  custom: {
    50: '#6d5db0',
    500: '#18218e',
    950: '#000000',
  },
}

SCSS

$custom: #18218e;
$custom-light: #6d5db0;
$custom-dark: #000000;

JSON

{
  "hex": "#18218e",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 142
  },
  "hsl": {
    "h": 235.424,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33435,
    "c": 0.17446,
    "h": 269.1
  },
  "luminance": 0.03235
}

Semantic roles & 50–950 ramp

primary

#18218E

secondary

#C0B642

accent

#E03AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #18218E

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

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