#18217A#18217A

#18217A is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.2% C 0.148 H 270.1°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#18217A
RGB	rgb(24, 33, 122)
HSL	hsl(234, 67%, 29%)
HSV	hsv(234, 80%, 48%)
CMYK	cmyk(80.3%, 73%, 0%, 52.2%)
CIE-LAB	lab(18.74, 30.22, -51.26)
CIE-LCH	lch(18.74, 59.50, 300.52°)
OKLab	oklab(31.19% 0.0001 -0.1484)
OKLCH	oklch(31.19% 0.148 270.1)
XYZ	xyz(4.4322, 2.6866, 18.6935)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18217A #7A7118

analogous

#18527A #18217A #40187A

triadic

#18217A #7A1821 #217A18

tetradic

#18217A #7A1852 #7A7118 #187A40

square

#18217A #7A1852 #7A7118 #187A40

split-complementary

#18217A #7A4018 #527A18

monochromatic

#05071A #0E1347 #18217A #222FAD #3544D7

Accessibility & contrast

On white

13.66

#18217A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#18217A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18217A

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18217A	#FFFFFF	#000000	##FFFFFF
##18217A	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327D

Deuteranopia (green-blind)

#002978

Tritanopia (blue-blind)

#003A4B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #18217a;
/* rgb */ color: rgb(24, 33, 122);
/* oklch */ color: oklch(31.2% 0.148 270.1);

Tailwind

colors: {
  custom: {
    50: '#675ca1',
    500: '#18217a',
    950: '#000000',
  },
}

SCSS

$custom: #18217a;
$custom-light: #675ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#18217a",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 122
  },
  "hsl": {
    "h": 234.49,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.3119,
    "c": 0.14842,
    "h": 270.1
  },
  "luminance": 0.02687
}

Semantic roles & 50–950 ramp

primary

#18217A

secondary

#AFA53F

accent

#DA3EEA

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #18217A

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

Preview Lab → · Contrast checker → · Palette generator →