#18156B#18156B

#18156B is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.6% C 0.141 H 273.5°. Best body text is #FFFFFF at 15.46:1 contrast (WCAG AA passes).

Color values

HEX	#18156B
RGB	rgb(24, 21, 107)
HSL	hsl(242, 67%, 25%)
HSV	hsv(242, 80%, 42%)
CMYK	cmyk(77.6%, 80.4%, 0%, 58%)
CIE-LAB	lab(14.35, 32.24, -48.80)
CIE-LCH	lch(14.35, 58.49, 303.45°)
OKLab	oklab(27.56% 0.0086 -0.1412)
OKLCH	oklch(27.56% 0.141 273.5)
XYZ	xyz(3.2978, 1.7917, 14.0791)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18156B #686B15

analogous

#153D6B #18156B #43156B

triadic

#18156B #6B1815 #156B18

tetradic

#18156B #6B153D #686B15 #156B43

square

#18156B #6B153D #686B15 #156B43

split-complementary

#18156B #6B4315 #3D6B15

monochromatic

#06051A #0D0B38 #18156B #231F9E #2F29D1

Accessibility & contrast

On white

15.46

#18156B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#18156B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18156B

15.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18156B	#FFFFFF	#000000	##FFFFFF
##18156B	1.00	15.46	1.36	15.46
#FFFFFF	15.46	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286D

Deuteranopia (green-blind)

#002069

Tritanopia (blue-blind)

#002F3F

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #18156b;
/* rgb */ color: rgb(24, 21, 107);
/* oklch */ color: oklch(27.6% 0.141 273.5);

Tailwind

colors: {
  custom: {
    50: '#655496',
    500: '#18156b',
    950: '#000000',
  },
}

SCSS

$custom: #18156b;
$custom-light: #655496;
$custom-dark: #000000;

JSON

{
  "hex": "#18156b",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 107
  },
  "hsl": {
    "h": 242.093,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.27558,
    "c": 0.14145,
    "h": 273.5
  },
  "luminance": 0.01792
}

Semantic roles & 50–950 ramp

primary

#18156B

secondary

#9EA23A

accent

#EA3EE4

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #18156B

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

Preview Lab → · Contrast checker → · Palette generator →