#18186D#18186D

#18186D is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.2% C 0.141 H 272.7°. Best body text is #FFFFFF at 15.10:1 contrast (WCAG AA passes).

Color values

HEX	#18186D
RGB	rgb(24, 24, 109)
HSL	hsl(240, 64%, 26%)
HSV	hsv(240, 78%, 43%)
CMYK	cmyk(78%, 78%, 0%, 57.3%)
CIE-LAB	lab(15.23, 31.15, -48.66)
CIE-LCH	lch(15.23, 57.78, 302.62°)
OKLab	oklab(28.25% 0.0067 -0.1408)
OKLCH	oklch(28.25% 0.141 272.7)
XYZ	xyz(3.4627, 1.9512, 14.6592)
Luminance	0.0195 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18186D #6D6D18

analogous

#18426D #18186D #42186D

triadic

#18186D #6D1818 #186D18

tetradic

#18186D #6D1842 #6D6D18 #186D42

square

#18186D #6D1842 #6D6D18 #186D42

split-complementary

#18186D #6D4218 #426D18

monochromatic

#060619 #0D0D3B #18186D #23239F #2E2ED1

Accessibility & contrast

On white

15.10

#18186D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#18186D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18186D

15.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18186D	#FFFFFF	#000000	##FFFFFF
##18186D	1.00	15.10	1.39	15.10
#FFFFFF	15.10	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6F

Deuteranopia (green-blind)

#00226B

Tritanopia (blue-blind)

#003141

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #18186d;
/* rgb */ color: rgb(24, 24, 109);
/* oklch */ color: oklch(28.2% 0.141 272.7);

Tailwind

colors: {
  custom: {
    50: '#655698',
    500: '#18186d',
    950: '#000000',
  },
}

SCSS

$custom: #18186d;
$custom-light: #655698;
$custom-dark: #000000;

JSON

{
  "hex": "#18186d",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 109
  },
  "hsl": {
    "h": 240,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28246,
    "c": 0.14098,
    "h": 272.7
  },
  "luminance": 0.01952
}

Semantic roles & 50–950 ramp

primary

#18186D

secondary

#A3A33E

accent

#E741E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #18186D

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

Preview Lab → · Contrast checker → · Palette generator →