#18439B#18439B

#18439B is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.1% C 0.152 H 262.3°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#18439B
RGB	rgb(24, 67, 155)
HSL	hsl(220, 73%, 35%)
HSV	hsv(220, 85%, 61%)
CMYK	cmyk(84.5%, 56.8%, 0%, 39.2%)
CIE-LAB	lab(30.82, 20.01, -52.03)
CIE-LCH	lch(30.82, 55.74, 291.04°)
OKLab	oklab(41.06% -0.0202 -0.1503)
OKLCH	oklch(41.06% 0.152 262.3)
XYZ	xyz(8.2981, 6.5740, 31.8356)
Luminance	0.0658 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18439B #9B7018

analogous

#18859B #18439B #2E189B

triadic

#18439B #9B1843 #439B18

tetradic

#18439B #9B1885 #9B7018 #189B2E

square

#18439B #9B1885 #9B7018 #189B2E

split-complementary

#18439B #9B2E18 #859B18

monochromatic

#081531 #102C66 #18439B #205AD0 #4A7CE3

Accessibility & contrast

On white

9.07

#18439B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#18439B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18439B

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18439B	#FFFFFF	#000000	##FFFFFF
##18439B	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9E

Deuteranopia (green-blind)

#004399

Tritanopia (blue-blind)

#005968

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #18439b;
/* rgb */ color: rgb(24, 67, 155);
/* oklch */ color: oklch(41.1% 0.152 262.3);

Tailwind

colors: {
  custom: {
    50: '#6e76b9',
    500: '#18439b',
    950: '#000000',
  },
}

SCSS

$custom: #18439b;
$custom-light: #6e76b9;
$custom-dark: #000000;

JSON

{
  "hex": "#18439b",
  "rgb": {
    "r": 24,
    "g": 67,
    "b": 155
  },
  "hsl": {
    "h": 220.305,
    "s": 73.184,
    "l": 35.098
  },
  "oklch": {
    "l": 0.41063,
    "c": 0.15162,
    "h": 262.3
  },
  "luminance": 0.06575
}

Semantic roles & 50–950 ramp

primary

#18439B

secondary

#C59C4A

accent

#B338F0

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080812

muted

#7B7B81

Preview Lab

Preview with #18439B

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

Preview Lab → · Contrast checker → · Palette generator →