#18287A#18287A

#18287A is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.5% C 0.140 H 268.4°. Best body text is #FFFFFF at 12.94:1 contrast (WCAG AA passes).

Color values

HEX	#18287A
RGB	rgb(24, 40, 122)
HSL	hsl(230, 67%, 29%)
HSV	hsv(230, 80%, 48%)
CMYK	cmyk(80.3%, 67.2%, 0%, 52.2%)
CIE-LAB	lab(20.50, 25.49, -48.36)
CIE-LCH	lch(20.50, 54.67, 297.79°)
OKLab	oklab(32.47% -0.0038 -0.1399)
OKLCH	oklch(32.47% 0.14 268.4)
XYZ	xyz(4.6471, 3.1164, 18.7652)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18287A #7A6A18

analogous

#18597A #18287A #39187A

triadic

#18287A #7A1828 #287A18

tetradic

#18287A #7A1859 #7A6A18 #187A39

square

#18287A #7A1859 #7A6A18 #187A39

split-complementary

#18287A #7A3918 #597A18

monochromatic

#05081A #0E1747 #18287A #2239AD #3550D7

Accessibility & contrast

On white

12.94

#18287A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#18287A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18287A

12.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18287A	#FFFFFF	#000000	##FFFFFF
##18287A	1.00	12.94	1.62	12.94
#FFFFFF	12.94	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367D

Deuteranopia (green-blind)

#002D78

Tritanopia (blue-blind)

#003E4D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #18287a;
/* rgb */ color: rgb(24, 40, 122);
/* oklch */ color: oklch(32.5% 0.140 268.4);

Tailwind

colors: {
  custom: {
    50: '#6761a1',
    500: '#18287a',
    950: '#000000',
  },
}

SCSS

$custom: #18287a;
$custom-light: #6761a1;
$custom-dark: #000000;

JSON

{
  "hex": "#18287a",
  "rgb": {
    "r": 24,
    "g": 40,
    "b": 122
  },
  "hsl": {
    "h": 230.204,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.32473,
    "c": 0.13998,
    "h": 268.4
  },
  "luminance": 0.03117
}

Semantic roles & 50–950 ramp

primary

#18287A

secondary

#AF9D3F

accent

#CE3EEA

background

#F6F5FA

surface

#EBEAF3

border

#C6C6CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #18287A

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

Preview Lab → · Contrast checker → · Palette generator →