#18187E#18187E

#18187E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.163 H 271.1°. Best body text is #FFFFFF at 14.28:1 contrast (WCAG AA passes).

Color values

HEX	#18187E
RGB	rgb(24, 24, 126)
HSL	hsl(240, 68%, 29%)
HSV	hsv(240, 81%, 49%)
CMYK	cmyk(81%, 81%, 0%, 50.6%)
CIE-LAB	lab(17.24, 37.17, -56.29)
CIE-LCH	lch(17.24, 67.45, 303.44°)
OKLab	oklab(30.26% 0.0032 -0.163)
OKLCH	oklch(30.26% 0.163 271.1)
XYZ	xyz(4.4679, 2.3533, 19.9534)
Luminance	0.0235 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18187E #7E7E18

analogous

#184B7E #18187E #4B187E

triadic

#18187E #7E1818 #187E18

tetradic

#18187E #7E184B #7E7E18 #187E4B

square

#18187E #7E184B #7E7E18 #187E4B

split-complementary

#18187E #7E4B18 #4B7E18

monochromatic

#05051A #0E0E4B #18187E #2222B1 #3737D9

Accessibility & contrast

On white

14.28

#18187E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#18187E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18187E

14.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18187E	#FFFFFF	#000000	##FFFFFF
##18187E	1.00	14.28	1.47	14.28
#FFFFFF	14.28	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F81

Deuteranopia (green-blind)

#00257C

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #18187e;
/* rgb */ color: rgb(24, 24, 126);
/* oklch */ color: oklch(30.3% 0.163 271.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#18187e",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 126
  },
  "hsl": {
    "h": 240,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30258,
    "c": 0.163,
    "h": 271.1
  },
  "luminance": 0.02354
}

Semantic roles & 50–950 ramp

primary

#18187E

secondary

#B2B23F

accent

#EB3DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #18187E

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

Preview Lab → · Contrast checker → · Palette generator →