#18409B#18409B

#18409B is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.155 H 263.2°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#18409B
RGB	rgb(24, 64, 155)
HSL	hsl(222, 73%, 35%)
HSV	hsv(222, 85%, 61%)
CMYK	cmyk(84.5%, 58.7%, 0%, 39.2%)
CIE-LAB	lab(29.98, 22.08, -53.39)
CIE-LCH	lch(29.98, 57.78, 292.46°)
OKLab	oklab(40.43% -0.0183 -0.1543)
OKLCH	oklch(40.43% 0.155 263.2)
XYZ	xyz(8.1244, 6.2265, 31.7776)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18409B #9B7318

analogous

#18829B #18409B #31189B

triadic

#18409B #9B1840 #409B18

tetradic

#18409B #9B1882 #9B7318 #189B31

square

#18409B #9B1882 #9B7318 #189B31

split-complementary

#18409B #9B3118 #829B18

monochromatic

#081431 #102A66 #18409B #2056D0 #4A79E3

Accessibility & contrast

On white

9.35

#18409B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#18409B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18409B

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18409B	#FFFFFF	#000000	##FFFFFF
##18409B	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9E

Deuteranopia (green-blind)

#004199

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #18409b;
/* rgb */ color: rgb(24, 64, 155);
/* oklch */ color: oklch(40.4% 0.155 263.2);

Tailwind

colors: {
  custom: {
    50: '#6e74b9',
    500: '#18409b',
    950: '#000000',
  },
}

SCSS

$custom: #18409b;
$custom-light: #6e74b9;
$custom-dark: #000000;

JSON

{
  "hex": "#18409b",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 155
  },
  "hsl": {
    "h": 221.679,
    "s": 73.184,
    "l": 35.098
  },
  "oklch": {
    "l": 0.4043,
    "c": 0.15542,
    "h": 263.2
  },
  "luminance": 0.06228
}

Semantic roles & 50–950 ramp

primary

#18409B

secondary

#C59F4A

accent

#B838F0

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080812

muted

#7B7B81

Preview Lab

Preview with #18409B

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

Preview Lab → · Contrast checker → · Palette generator →