#18187F#18187F

#18187F is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.164 H 271.0°. Best body text is #FFFFFF at 14.23:1 contrast (WCAG AA passes).

Color values

HEX	#18187F
RGB	rgb(24, 24, 127)
HSL	hsl(240, 68%, 30%)
HSV	hsv(240, 81%, 50%)
CMYK	cmyk(81.1%, 81.1%, 0%, 50.2%)
CIE-LAB	lab(17.36, 37.51, -56.72)
CIE-LCH	lch(17.36, 68.00, 303.48°)
OKLab	oklab(30.38% 0.003 -0.1642)
OKLCH	oklch(30.38% 0.164 271)
XYZ	xyz(4.5328, 2.3793, 20.2949)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18187F #7F7F18

analogous

#184C7F #18187F #4C187F

triadic

#18187F #7F1818 #187F18

tetradic

#18187F #7F184C #7F7F18 #187F4C

square

#18187F #7F184C #7F7F18 #187F4C

split-complementary

#18187F #7F4C18 #4C7F18

monochromatic

#05051A #0E0E4C #18187F #2222B2 #3838D9

Accessibility & contrast

On white

14.23

#18187F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#18187F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18187F

14.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18187F	#FFFFFF	#000000	##FFFFFF
##18187F	1.00	14.23	1.48	14.23
#FFFFFF	14.23	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003082

Deuteranopia (green-blind)

#00257D

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #18187f;
/* rgb */ color: rgb(24, 24, 127);
/* oklch */ color: oklch(30.4% 0.164 271.0);

Tailwind

colors: {
  custom: {
    50: '#6a57a5',
    500: '#18187f',
    950: '#000000',
  },
}

SCSS

$custom: #18187f;
$custom-light: #6a57a5;
$custom-dark: #000000;

JSON

{
  "hex": "#18187f",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 127
  },
  "hsl": {
    "h": 240,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.30379,
    "c": 0.16426,
    "h": 271
  },
  "luminance": 0.0238
}

Semantic roles & 50–950 ramp

primary

#18187F

secondary

#B3B33F

accent

#EB3DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #18187F

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

Preview Lab → · Contrast checker → · Palette generator →