#18317A#18317A

#18317A is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.3% C 0.128 H 265.6°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#18317A
RGB	rgb(24, 49, 122)
HSL	hsl(225, 67%, 29%)
HSV	hsv(225, 80%, 48%)
CMYK	cmyk(80.3%, 59.8%, 0%, 52.2%)
CIE-LAB	lab(22.98, 19.15, -44.31)
CIE-LCH	lch(22.98, 48.27, 293.37°)
OKLab	oklab(34.31% -0.0099 -0.1279)
OKLCH	oklch(34.31% 0.128 265.6)
XYZ	xyz(4.9866, 3.7954, 18.8784)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18317A #7A6118

analogous

#18627A #18317A #30187A

triadic

#18317A #7A1831 #317A18

tetradic

#18317A #7A1862 #7A6118 #187A30

square

#18317A #7A1862 #7A6118 #187A30

split-complementary

#18317A #7A3018 #627A18

monochromatic

#050A1A #0E1C47 #18317A #2246AD #355ED7

Accessibility & contrast

On white

11.94

#18317A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#18317A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18317A

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18317A	#FFFFFF	#000000	##FFFFFF
##18317A	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7C

Deuteranopia (green-blind)

#003279

Tritanopia (blue-blind)

#004350

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #18317a;
/* rgb */ color: rgb(24, 49, 122);
/* oklch */ color: oklch(34.3% 0.128 265.6);

Tailwind

colors: {
  custom: {
    50: '#6668a1',
    500: '#18317a',
    950: '#000000',
  },
}

SCSS

$custom: #18317a;
$custom-light: #6668a1;
$custom-dark: #000000;

JSON

{
  "hex": "#18317a",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 122
  },
  "hsl": {
    "h": 224.694,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.34313,
    "c": 0.12832,
    "h": 265.6
  },
  "luminance": 0.03796
}

Semantic roles & 50–950 ramp

primary

#18317A

secondary

#AF923F

accent

#BE3EEA

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18317A

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

Preview Lab → · Contrast checker → · Palette generator →