#18189E#18189E

#18189E is a dark, highly saturated blue. Relative luminance 0.033; OKLCH L 34.2% C 0.201 H 269.0°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#18189E
RGB	rgb(24, 24, 158)
HSL	hsl(240, 74%, 36%)
HSV	hsv(240, 85%, 62%)
CMYK	cmyk(84.8%, 84.8%, 0%, 38%)
CIE-LAB	lab(21.26, 47.68, -69.57)
CIE-LCH	lch(21.26, 84.35, 304.43°)
OKLab	oklab(34.21% -0.0036 -0.2014)
OKLCH	oklch(34.21% 0.201 269)
XYZ	xyz(6.8728, 3.3152, 32.6188)
Luminance	0.0332 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18189E #9E9E18

analogous

#185B9E #18189E #5B189E

triadic

#18189E #9E1818 #189E18

tetradic

#18189E #9E185B #9E9E18 #189E5B

square

#18189E #9E185B #9E9E18 #189E5B

split-complementary

#18189E #9E5B18 #5B9E18

monochromatic

#080834 #101069 #18189E #2020D3 #4D4DE4

Accessibility & contrast

On white

12.63

#18189E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#18189E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18189E

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18189E	#FFFFFF	#000000	##FFFFFF
##18189E	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003AA2

Deuteranopia (green-blind)

#002C9C

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18189e;
/* rgb */ color: rgb(24, 24, 158);
/* oklch */ color: oklch(34.2% 0.201 269.0);

Tailwind

colors: {
  custom: {
    50: '#7259bc',
    500: '#18189e',
    950: '#000000',
  },
}

SCSS

$custom: #18189e;
$custom-light: #7259bc;
$custom-dark: #000000;

JSON

{
  "hex": "#18189e",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 158
  },
  "hsl": {
    "h": 240,
    "s": 73.626,
    "l": 35.686
  },
  "oklch": {
    "l": 0.34211,
    "c": 0.20145,
    "h": 269
  },
  "luminance": 0.03316
}

Semantic roles & 50–950 ramp

primary

#18189E

secondary

#C6C64C

accent

#F038F0

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #18189E

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

Preview Lab → · Contrast checker → · Palette generator →