#18307A#18307A

#18307A is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.1% C 0.130 H 265.9°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#18307A
RGB	rgb(24, 48, 122)
HSL	hsl(225, 67%, 29%)
HSV	hsv(225, 80%, 48%)
CMYK	cmyk(80.3%, 60.7%, 0%, 52.2%)
CIE-LAB	lab(22.70, 19.86, -44.78)
CIE-LCH	lch(22.70, 48.98, 293.92°)
OKLab	oklab(34.1% -0.0092 -0.1293)
OKLCH	oklch(34.1% 0.13 265.9)
XYZ	xyz(4.9453, 3.7127, 18.8646)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18307A #7A6218

analogous

#18617A #18307A #31187A

triadic

#18307A #7A1830 #307A18

tetradic

#18307A #7A1861 #7A6218 #187A31

square

#18307A #7A1861 #7A6218 #187A31

split-complementary

#18307A #7A3118 #617A18

monochromatic

#050A1A #0E1C47 #18307A #2244AD #355DD7

Accessibility & contrast

On white

12.05

#18307A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#18307A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18307A

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18307A	#FFFFFF	#000000	##FFFFFF
##18307A	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7C

Deuteranopia (green-blind)

#003279

Tritanopia (blue-blind)

#004350

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #18307a;
/* rgb */ color: rgb(24, 48, 122);
/* oklch */ color: oklch(34.1% 0.130 265.9);

Tailwind

colors: {
  custom: {
    50: '#6667a1',
    500: '#18307a',
    950: '#000000',
  },
}

SCSS

$custom: #18307a;
$custom-light: #6667a1;
$custom-dark: #000000;

JSON

{
  "hex": "#18307a",
  "rgb": {
    "r": 24,
    "g": 48,
    "b": 122
  },
  "hsl": {
    "h": 225.306,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.34099,
    "c": 0.12965,
    "h": 265.9
  },
  "luminance": 0.03713
}

Semantic roles & 50–950 ramp

primary

#18307A

secondary

#AF933F

accent

#C03EEA

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18307A

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

Preview Lab → · Contrast checker → · Palette generator →