#18347C#18347C

#18347C is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.127 H 264.6°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#18347C
RGB	rgb(24, 52, 124)
HSL	hsl(223, 68%, 29%)
HSV	hsv(223, 81%, 49%)
CMYK	cmyk(80.6%, 58.1%, 0%, 51.4%)
CIE-LAB	lab(24.01, 17.84, -43.90)
CIE-LCH	lch(24.01, 47.38, 292.11°)
OKLab	oklab(35.14% -0.0121 -0.1267)
OKLCH	oklch(35.14% 0.127 264.6)
XYZ	xyz(5.2415, 4.1048, 19.5809)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18347C #7C6018

analogous

#18667C #18347C #2E187C

triadic

#18347C #7C1834 #347C18

tetradic

#18347C #7C1866 #7C6018 #187C2E

square

#18347C #7C1866 #7C6018 #187C2E

split-complementary

#18347C #7C2E18 #667C18

monochromatic

#050B1A #0E1E49 #18347C #224AAF #3664D8

Accessibility & contrast

On white

11.53

#18347C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#18347C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18347C

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18347C	#FFFFFF	#000000	##FFFFFF
##18347C	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7E

Deuteranopia (green-blind)

#00357B

Tritanopia (blue-blind)

#004652

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #18347c;
/* rgb */ color: rgb(24, 52, 124);
/* oklch */ color: oklch(35.1% 0.127 264.6);

Tailwind

colors: {
  custom: {
    50: '#666ba3',
    500: '#18347c',
    950: '#000000',
  },
}

SCSS

$custom: #18347c;
$custom-light: #666ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#18347c",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 124
  },
  "hsl": {
    "h": 223.2,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35141,
    "c": 0.12724,
    "h": 264.6
  },
  "luminance": 0.04105
}

Semantic roles & 50–950 ramp

primary

#18347C

secondary

#B1913F

accent

#BA3DEA

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18347C

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

Preview Lab → · Contrast checker → · Palette generator →