#18217B#18217B

#18217B is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.3% C 0.150 H 270.0°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#18217B
RGB	rgb(24, 33, 123)
HSL	hsl(235, 67%, 29%)
HSV	hsv(235, 80%, 48%)
CMYK	cmyk(80.5%, 73.2%, 0%, 51.8%)
CIE-LAB	lab(18.85, 30.60, -51.72)
CIE-LCH	lch(18.85, 60.09, 300.61°)
OKLab	oklab(31.3% 0 -0.1498)
OKLCH	oklch(31.3% 0.15 270)
XYZ	xyz(4.4945, 2.7115, 19.0215)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18217B #7B7218

analogous

#18537B #18217B #41187B

triadic

#18217B #7B1821 #217B18

tetradic

#18217B #7B1853 #7B7218 #187B41

square

#18217B #7B1853 #7B7218 #187B41

split-complementary

#18217B #7B4118 #537B18

monochromatic

#05071A #0E1348 #18217B #222FAE #3644D8

Accessibility & contrast

On white

13.62

#18217B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#18217B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18217B

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18217B	#FFFFFF	#000000	##FFFFFF
##18217B	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337E

Deuteranopia (green-blind)

#002979

Tritanopia (blue-blind)

#003A4B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #18217b;
/* rgb */ color: rgb(24, 33, 123);
/* oklch */ color: oklch(31.3% 0.150 270.0);

Tailwind

colors: {
  custom: {
    50: '#685da2',
    500: '#18217b',
    950: '#000000',
  },
}

SCSS

$custom: #18217b;
$custom-light: #685da2;
$custom-dark: #000000;

JSON

{
  "hex": "#18217b",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 123
  },
  "hsl": {
    "h": 234.545,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.313,
    "c": 0.14976,
    "h": 270
  },
  "luminance": 0.02712
}

Semantic roles & 50–950 ramp

primary

#18217B

secondary

#B0A53F

accent

#DB3EEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #18217B

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

Preview Lab → · Contrast checker → · Palette generator →