#18186F#18186F

#18186F is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.5% C 0.144 H 272.5°. Best body text is #FFFFFF at 15.01:1 contrast (WCAG AA passes).

Color values

HEX	#18186F
RGB	rgb(24, 24, 111)
HSL	hsl(240, 64%, 26%)
HSV	hsv(240, 78%, 44%)
CMYK	cmyk(78.4%, 78.4%, 0%, 56.5%)
CIE-LAB	lab(15.46, 31.87, -49.58)
CIE-LCH	lch(15.46, 58.94, 302.73°)
OKLab	oklab(28.48% 0.0063 -0.1435)
OKLCH	oklch(28.48% 0.144 272.5)
XYZ	xyz(3.5716, 1.9948, 15.2326)
Luminance	0.0199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18186F #6F6F18

analogous

#18446F #18186F #44186F

triadic

#18186F #6F1818 #186F18

tetradic

#18186F #6F1844 #6F6F18 #186F44

square

#18186F #6F1844 #6F6F18 #186F44

split-complementary

#18186F #6F4418 #446F18

monochromatic

#050519 #0D0D3D #18186F #2323A1 #2F2FD2

Accessibility & contrast

On white

15.01

#18186F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#18186F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18186F

15.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18186F	#FFFFFF	#000000	##FFFFFF
##18186F	1.00	15.01	1.40	15.01
#FFFFFF	15.01	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B72

Deuteranopia (green-blind)

#00226D

Tritanopia (blue-blind)

#003142

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #18186f;
/* rgb */ color: rgb(24, 24, 111);
/* oklch */ color: oklch(28.5% 0.144 272.5);

Tailwind

colors: {
  custom: {
    50: '#655699',
    500: '#18186f',
    950: '#000000',
  },
}

SCSS

$custom: #18186f;
$custom-light: #655699;
$custom-dark: #000000;

JSON

{
  "hex": "#18186f",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 111
  },
  "hsl": {
    "h": 240,
    "s": 64.444,
    "l": 26.471
  },
  "oklch": {
    "l": 0.28478,
    "c": 0.14364,
    "h": 272.5
  },
  "luminance": 0.01995
}

Semantic roles & 50–950 ramp

primary

#18186F

secondary

#A5A53E

accent

#E740E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #18186F

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

Preview Lab → · Contrast checker → · Palette generator →