#18186B#18186B

#18186B is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.0% C 0.138 H 273.0°. Best body text is #FFFFFF at 15.20:1 contrast (WCAG AA passes).

Color values

HEX	#18186B
RGB	rgb(24, 24, 107)
HSL	hsl(240, 63%, 26%)
HSV	hsv(240, 78%, 42%)
CMYK	cmyk(77.6%, 77.6%, 0%, 58%)
CIE-LAB	lab(15.00, 30.41, -47.73)
CIE-LCH	lch(15.00, 56.60, 302.50°)
OKLab	oklab(28.02% 0.0071 -0.1381)
OKLCH	oklch(28.02% 0.138 273)
XYZ	xyz(3.3563, 1.9087, 14.0986)
Luminance	0.0191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18186B #6B6B18

analogous

#18416B #18186B #41186B

triadic

#18186B #6B1818 #186B18

tetradic

#18186B #6B1841 #6B6B18 #186B41

square

#18186B #6B1841 #6B6B18 #186B41

split-complementary

#18186B #6B4118 #416B18

monochromatic

#060619 #0D0D39 #18186B #23239D #2E2ECF

Accessibility & contrast

On white

15.20

#18186B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#18186B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18186B

15.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18186B	#FFFFFF	#000000	##FFFFFF
##18186B	1.00	15.20	1.38	15.20
#FFFFFF	15.20	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6D

Deuteranopia (green-blind)

#00226A

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #18186b;
/* rgb */ color: rgb(24, 24, 107);
/* oklch */ color: oklch(28.0% 0.138 273.0);

Tailwind

colors: {
  custom: {
    50: '#645696',
    500: '#18186b',
    950: '#000000',
  },
}

SCSS

$custom: #18186b;
$custom-light: #645696;
$custom-dark: #000000;

JSON

{
  "hex": "#18186b",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 107
  },
  "hsl": {
    "h": 240,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28016,
    "c": 0.1383,
    "h": 273
  },
  "luminance": 0.01909
}

Semantic roles & 50–950 ramp

primary

#18186B

secondary

#A1A13E

accent

#E641E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #18186B

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

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