#18379F#18379F

#18379F is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.0% C 0.172 H 265.6°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#18379F
RGB	rgb(24, 55, 159)
HSL	hsl(226, 74%, 36%)
HSV	hsv(226, 85%, 62%)
CMYK	cmyk(84.9%, 65.4%, 0%, 37.6%)
CIE-LAB	lab(27.92, 29.79, -59.18)
CIE-LCH	lch(27.92, 66.26, 296.72°)
OKLab	oklab(39.01% -0.0132 -0.1714)
OKLCH	oklch(39.01% 0.172 265.6)
XYZ	xyz(7.9987, 5.4288, 33.4205)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18379F #9F8018

analogous

#187A9F #18379F #3C189F

triadic

#18379F #9F1837 #379F18

tetradic

#18379F #9F187A #9F8018 #189F3C

square

#18379F #9F187A #9F8018 #189F3C

split-complementary

#18379F #9F3C18 #7A9F18

monochromatic

#081235 #10256A #18379F #2049D4 #4D70E4

Accessibility & contrast

On white

10.07

#18379F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#18379F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18379F

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18379F	#FFFFFF	#000000	##FFFFFF
##18379F	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A2

Deuteranopia (green-blind)

#003C9D

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #18379f;
/* rgb */ color: rgb(24, 55, 159);
/* oklch */ color: oklch(39.0% 0.172 265.6);

Tailwind

colors: {
  custom: {
    50: '#706dbc',
    500: '#18379f',
    950: '#000000',
  },
}

SCSS

$custom: #18379f;
$custom-light: #706dbc;
$custom-dark: #000000;

JSON

{
  "hex": "#18379f",
  "rgb": {
    "r": 24,
    "g": 55,
    "b": 159
  },
  "hsl": {
    "h": 226.222,
    "s": 73.77,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39009,
    "c": 0.17194,
    "h": 265.6
  },
  "luminance": 0.0543
}

Semantic roles & 50–950 ramp

primary

#18379F

secondary

#C6AA4D

accent

#C637F0

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #18379F

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

Preview Lab → · Contrast checker → · Palette generator →