#18156D#18156D

#18156D is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.8% C 0.144 H 273.3°. Best body text is #FFFFFF at 15.36:1 contrast (WCAG AA passes).

Color values

HEX	#18156D
RGB	rgb(24, 21, 109)
HSL	hsl(242, 68%, 25%)
HSV	hsv(242, 81%, 43%)
CMYK	cmyk(78%, 80.7%, 0%, 57.3%)
CIE-LAB	lab(14.59, 32.95, -49.71)
CIE-LCH	lch(14.59, 59.64, 303.54°)
OKLab	oklab(27.8% 0.0082 -0.1438)
OKLCH	oklch(27.8% 0.144 273.3)
XYZ	xyz(3.4042, 1.8343, 14.6397)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18156D #6A6D15

analogous

#153E6D #18156D #44156D

triadic

#18156D #6D1815 #156D18

tetradic

#18156D #6D153E #6A6D15 #156D44

square

#18156D #6D153E #6A6D15 #156D44

split-complementary

#18156D #6D4415 #3E6D15

monochromatic

#06051A #0D0B3A #18156D #231FA0 #2F29D4

Accessibility & contrast

On white

15.36

#18156D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#18156D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18156D

15.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18156D	#FFFFFF	#000000	##FFFFFF
##18156D	1.00	15.36	1.37	15.36
#FFFFFF	15.36	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296F

Deuteranopia (green-blind)

#00216B

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #18156d;
/* rgb */ color: rgb(24, 21, 109);
/* oklch */ color: oklch(27.8% 0.144 273.3);

Tailwind

colors: {
  custom: {
    50: '#655498',
    500: '#18156d',
    950: '#000000',
  },
}

SCSS

$custom: #18156d;
$custom-light: #655498;
$custom-dark: #000000;

JSON

{
  "hex": "#18156d",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 109
  },
  "hsl": {
    "h": 242.045,
    "s": 67.692,
    "l": 25.49
  },
  "oklch": {
    "l": 0.27796,
    "c": 0.14408,
    "h": 273.3
  },
  "luminance": 0.01835
}

Semantic roles & 50–950 ramp

primary

#18156D

secondary

#A0A33A

accent

#EB3DE5

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #18156D

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

Preview Lab → · Contrast checker → · Palette generator →