#18347B#18347B

#18347B is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.126 H 264.5°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#18347B
RGB	rgb(24, 52, 123)
HSL	hsl(223, 67%, 29%)
HSV	hsv(223, 80%, 48%)
CMYK	cmyk(80.5%, 57.7%, 0%, 51.8%)
CIE-LAB	lab(23.93, 17.43, -43.40)
CIE-LCH	lch(23.93, 46.77, 291.88°)
OKLab	oklab(35.05% -0.0121 -0.1252)
OKLCH	oklch(35.05% 0.126 264.5)
XYZ	xyz(5.1786, 4.0796, 19.2496)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18347B #7B5F18

analogous

#18667B #18347B #2E187B

triadic

#18347B #7B1834 #347B18

tetradic

#18347B #7B1866 #7B5F18 #187B2E

square

#18347B #7B1866 #7B5F18 #187B2E

split-complementary

#18347B #7B2E18 #667B18

monochromatic

#050B1A #0E1E48 #18347B #224AAE #3664D8

Accessibility & contrast

On white

11.56

#18347B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#18347B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18347B

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18347B	#FFFFFF	#000000	##FFFFFF
##18347B	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7D

Deuteranopia (green-blind)

#00357A

Tritanopia (blue-blind)

#004652

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #18347b;
/* rgb */ color: rgb(24, 52, 123);
/* oklch */ color: oklch(35.1% 0.126 264.5);

Tailwind

colors: {
  custom: {
    50: '#666aa2',
    500: '#18347b',
    950: '#000000',
  },
}

SCSS

$custom: #18347b;
$custom-light: #666aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#18347b",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 123
  },
  "hsl": {
    "h": 223.03,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35054,
    "c": 0.1258,
    "h": 264.5
  },
  "luminance": 0.0408
}

Semantic roles & 50–950 ramp

primary

#18347B

secondary

#B0903F

accent

#B93EEA

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18347B

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

Preview Lab → · Contrast checker → · Palette generator →