#18188E#18188E

#18188E is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.2% C 0.183 H 269.9°. Best body text is #FFFFFF at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#18188E
RGB	rgb(24, 24, 142)
HSL	hsl(240, 71%, 33%)
HSV	hsv(240, 83%, 56%)
CMYK	cmyk(83.1%, 83.1%, 0%, 44.3%)
CIE-LAB	lab(19.22, 42.55, -63.08)
CIE-LCH	lch(19.22, 76.09, 304.00°)
OKLab	oklab(32.21% -0.0002 -0.1826)
OKLCH	oklch(32.21% 0.183 269.9)
XYZ	xyz(5.5841, 2.7998, 25.8320)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18188E #8E8E18

analogous

#18538E #18188E #53188E

triadic

#18188E #8E1818 #188E18

tetradic

#18188E #8E1853 #8E8E18 #188E53

square

#18188E #8E1853 #8E8E18 #188E53

split-complementary

#18188E #8E5318 #538E18

monochromatic

#060625 #0F0F5A #18188E #2121C2 #4141DF

Accessibility & contrast

On white

13.46

#18188E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#18188E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18188E

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18188E	#FFFFFF	#000000	##FFFFFF
##18188E	1.00	13.46	1.56	13.46
#FFFFFF	13.46	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#00288C

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #18188e;
/* rgb */ color: rgb(24, 24, 142);
/* oklch */ color: oklch(32.2% 0.183 269.9);

Tailwind

colors: {
  custom: {
    50: '#6e58b0',
    500: '#18188e',
    950: '#000000',
  },
}

SCSS

$custom: #18188e;
$custom-light: #6e58b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18188e",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 142
  },
  "hsl": {
    "h": 240,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32215,
    "c": 0.18264,
    "h": 269.9
  },
  "luminance": 0.028
}

Semantic roles & 50–950 ramp

primary

#18188E

secondary

#C0C042

accent

#EE3AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #18188E

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

Preview Lab → · Contrast checker → · Palette generator →