#18297B#18297B

#18297B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.8% C 0.140 H 268.2°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#18297B
RGB	rgb(24, 41, 123)
HSL	hsl(230, 67%, 29%)
HSV	hsv(230, 80%, 48%)
CMYK	cmyk(80.5%, 66.7%, 0%, 51.8%)
CIE-LAB	lab(20.86, 25.19, -48.41)
CIE-LCH	lch(20.86, 54.57, 297.49°)
OKLab	oklab(32.77% -0.0045 -0.1401)
OKLCH	oklch(32.77% 0.14 268.2)
XYZ	xyz(4.7435, 3.2096, 19.1046)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18297B #7B6A18

analogous

#185B7B #18297B #39187B

triadic

#18297B #7B1829 #297B18

tetradic

#18297B #7B185B #7B6A18 #187B39

square

#18297B #7B185B #7B6A18 #187B39

split-complementary

#18297B #7B3918 #5B7B18

monochromatic

#05091A #0E1848 #18297B #223AAE #3652D8

Accessibility & contrast

On white

12.79

#18297B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#18297B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18297B

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18297B	#FFFFFF	#000000	##FFFFFF
##18297B	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377E

Deuteranopia (green-blind)

#002E79

Tritanopia (blue-blind)

#003F4E

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #18297b;
/* rgb */ color: rgb(24, 41, 123);
/* oklch */ color: oklch(32.8% 0.140 268.2);

Tailwind

colors: {
  custom: {
    50: '#6762a2',
    500: '#18297b',
    950: '#000000',
  },
}

SCSS

$custom: #18297b;
$custom-light: #6762a2;
$custom-dark: #000000;

JSON

{
  "hex": "#18297b",
  "rgb": {
    "r": 24,
    "g": 41,
    "b": 123
  },
  "hsl": {
    "h": 229.697,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.32767,
    "c": 0.14013,
    "h": 268.2
  },
  "luminance": 0.0321
}

Semantic roles & 50–950 ramp

primary

#18297B

secondary

#B09C3F

accent

#CD3EEA

background

#F6F5FA

surface

#EBEAF4

border

#C6C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #18297B

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

Preview Lab → · Contrast checker → · Palette generator →