#18189F#18189F

#18189F is a dark, highly saturated blue. Relative luminance 0.034; OKLCH L 34.3% C 0.203 H 268.9°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#18189F
RGB	rgb(24, 24, 159)
HSL	hsl(240, 74%, 36%)
HSV	hsv(240, 85%, 62%)
CMYK	cmyk(84.9%, 84.9%, 0%, 37.6%)
CIE-LAB	lab(21.39, 48.00, -69.97)
CIE-LCH	lch(21.39, 84.85, 304.45°)
OKLab	oklab(34.34% -0.0038 -0.2026)
OKLCH	oklch(34.34% 0.203 268.9)
XYZ	xyz(6.9592, 3.3498, 33.0740)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18189F #9F9F18

analogous

#185B9F #18189F #5B189F

triadic

#18189F #9F1818 #189F18

tetradic

#18189F #9F185B #9F9F18 #189F5B

square

#18189F #9F185B #9F9F18 #189F5B

split-complementary

#18189F #9F5B18 #5B9F18

monochromatic

#080835 #10106A #18189F #2020D4 #4D4DE4

Accessibility & contrast

On white

12.57

#18189F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#18189F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18189F

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18189F	#FFFFFF	#000000	##FFFFFF
##18189F	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003AA3

Deuteranopia (green-blind)

#002C9D

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18189f;
/* rgb */ color: rgb(24, 24, 159);
/* oklch */ color: oklch(34.3% 0.203 268.9);

Tailwind

colors: {
  custom: {
    50: '#735abd',
    500: '#18189f',
    950: '#000000',
  },
}

SCSS

$custom: #18189f;
$custom-light: #735abd;
$custom-dark: #000000;

JSON

{
  "hex": "#18189f",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 159
  },
  "hsl": {
    "h": 240,
    "s": 73.77,
    "l": 35.882
  },
  "oklch": {
    "l": 0.34337,
    "c": 0.2026,
    "h": 268.9
  },
  "luminance": 0.03351
}

Semantic roles & 50–950 ramp

primary

#18189F

secondary

#C6C64D

accent

#F037F0

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #18189F

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

Preview Lab → · Contrast checker → · Palette generator →