#18297D#18297D

#18297D is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.0% C 0.143 H 268.2°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#18297D
RGB	rgb(24, 41, 125)
HSL	hsl(230, 68%, 29%)
HSV	hsv(230, 81%, 49%)
CMYK	cmyk(80.8%, 67.2%, 0%, 51%)
CIE-LAB	lab(21.06, 25.98, -49.36)
CIE-LCH	lch(21.06, 55.78, 297.76°)
OKLab	oklab(32.97% -0.0046 -0.1428)
OKLCH	oklch(32.97% 0.143 268.2)
XYZ	xyz(4.8700, 3.2602, 19.7707)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18297D #7D6C18

analogous

#185C7D #18297D #3A187D

triadic

#18297D #7D1829 #297D18

tetradic

#18297D #7D185C #7D6C18 #187D3A

square

#18297D #7D185C #7D6C18 #187D3A

split-complementary

#18297D #7D3A18 #5C7D18

monochromatic

#05081A #0E184A #18297D #223AB0 #3752D9

Accessibility & contrast

On white

12.71

#18297D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#18297D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18297D

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18297D	#FFFFFF	#000000	##FFFFFF
##18297D	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003780

Deuteranopia (green-blind)

#002E7B

Tritanopia (blue-blind)

#003F4F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18297d;
/* rgb */ color: rgb(24, 41, 125);
/* oklch */ color: oklch(33.0% 0.143 268.2);

Tailwind

colors: {
  custom: {
    50: '#6762a4',
    500: '#18297d',
    950: '#000000',
  },
}

SCSS

$custom: #18297d;
$custom-light: #6762a4;
$custom-dark: #000000;

JSON

{
  "hex": "#18297d",
  "rgb": {
    "r": 24,
    "g": 41,
    "b": 125
  },
  "hsl": {
    "h": 229.901,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.32967,
    "c": 0.14292,
    "h": 268.2
  },
  "luminance": 0.03261
}

Semantic roles & 50–950 ramp

primary

#18297D

secondary

#B29E3F

accent

#CD3DEB

background

#F6F5FA

surface

#EBEAF4

border

#C6C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #18297D

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

Preview Lab → · Contrast checker → · Palette generator →