#17218F#17218F

#17218F is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.5% C 0.176 H 268.8°. Best body text is #FFFFFF at 12.72:1 contrast (WCAG AA passes).

Color values

HEX	#17218F
RGB	rgb(23, 33, 143)
HSL	hsl(235, 72%, 33%)
HSV	hsv(235, 84%, 56%)
CMYK	cmyk(83.9%, 76.9%, 0%, 43.9%)
CIE-LAB	lab(21.03, 37.85, -60.72)
CIE-LCH	lch(21.03, 71.55, 301.94°)
OKLab	oklab(33.51% -0.0038 -0.1759)
OKLCH	oklch(33.51% 0.176 268.8)
XYZ	xyz(5.8534, 3.2523, 26.3005)
Luminance	0.0325 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17218F #8F8517

analogous

#175D8F #17218F #49178F

triadic

#17218F #8F1721 #218F17

tetradic

#17218F #8F175D #8F8517 #178F49

square

#17218F #8F175D #8F8517 #178F49

split-complementary

#17218F #8F4917 #5D8F17

monochromatic

#060926 #0F155A #17218F #1F2DC4 #404DE0

Accessibility & contrast

On white

12.72

#17218F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#17218F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17218F

12.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17218F	#FFFFFF	#000000	##FFFFFF
##17218F	1.00	12.72	1.65	12.72
#FFFFFF	12.72	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003892

Deuteranopia (green-blind)

#002C8D

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #17218f;
/* rgb */ color: rgb(23, 33, 143);
/* oklch */ color: oklch(33.5% 0.176 268.8);

Tailwind

colors: {
  custom: {
    50: '#6d5db1',
    500: '#17218f',
    950: '#000000',
  },
}

SCSS

$custom: #17218f;
$custom-light: #6d5db1;
$custom-dark: #000000;

JSON

{
  "hex": "#17218f",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 143
  },
  "hsl": {
    "h": 235,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33505,
    "c": 0.17598,
    "h": 268.8
  },
  "luminance": 0.03253
}

Semantic roles & 50–950 ramp

primary

#17218F

secondary

#C1B641

accent

#E039EF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #17218F

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

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