#18409E#18409E

#18409E is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.160 H 263.5°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#18409E
RGB	rgb(24, 64, 158)
HSL	hsl(222, 74%, 36%)
HSV	hsv(222, 85%, 62%)
CMYK	cmyk(84.8%, 59.5%, 0%, 38%)
CIE-LAB	lab(30.23, 23.28, -54.81)
CIE-LCH	lch(30.23, 59.54, 293.01°)
OKLab	oklab(40.7% -0.0181 -0.1585)
OKLCH	oklch(40.7% 0.16 263.5)
XYZ	xyz(8.3794, 6.3286, 33.1210)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18409E #9E7618

analogous

#18839E #18409E #33189E

triadic

#18409E #9E1840 #409E18

tetradic

#18409E #9E1883 #9E7618 #189E33

square

#18409E #9E1883 #9E7618 #189E33

split-complementary

#18409E #9E3318 #839E18

monochromatic

#081534 #102A69 #18409E #2056D3 #4D7AE4

Accessibility & contrast

On white

9.27

#18409E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#18409E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18409E

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18409E	#FFFFFF	#000000	##FFFFFF
##18409E	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA1

Deuteranopia (green-blind)

#00419C

Tritanopia (blue-blind)

#005868

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #18409e;
/* rgb */ color: rgb(24, 64, 158);
/* oklch */ color: oklch(40.7% 0.160 263.5);

Tailwind

colors: {
  custom: {
    50: '#6f74bb',
    500: '#18409e',
    950: '#000000',
  },
}

SCSS

$custom: #18409e;
$custom-light: #6f74bb;
$custom-dark: #000000;

JSON

{
  "hex": "#18409e",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 158
  },
  "hsl": {
    "h": 222.09,
    "s": 73.626,
    "l": 35.686
  },
  "oklch": {
    "l": 0.40696,
    "c": 0.15952,
    "h": 263.5
  },
  "luminance": 0.0633
}

Semantic roles & 50–950 ramp

primary

#18409E

secondary

#C6A14C

accent

#B938F0

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #18409E

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

Preview Lab → · Contrast checker → · Palette generator →