#17166C#17166C

#17166C is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.8% C 0.142 H 272.7°. Best body text is #FFFFFF at 15.35:1 contrast (WCAG AA passes).

Color values

HEX	#17166C
RGB	rgb(23, 22, 108)
HSL	hsl(241, 66%, 25%)
HSV	hsv(241, 80%, 42%)
CMYK	cmyk(78.7%, 79.6%, 0%, 57.6%)
CIE-LAB	lab(14.61, 31.91, -49.03)
CIE-LCH	lch(14.61, 58.50, 303.06°)
OKLab	oklab(27.76% 0.0066 -0.1419)
OKLCH	oklch(27.76% 0.142 272.7)
XYZ	xyz(3.3461, 1.8383, 14.3629)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17166C #6B6C16

analogous

#16406C #17166C #42166C

triadic

#17166C #6C1716 #166C17

tetradic

#17166C #6C1640 #6B6C16 #166C42

square

#17166C #6C1640 #6B6C16 #166C42

split-complementary

#17166C #6C4216 #406C16

monochromatic

#050519 #0C0C39 #17166C #22209F #2D2BD2

Accessibility & contrast

On white

15.35

#17166C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#17166C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17166C

15.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17166C	#FFFFFF	#000000	##FFFFFF
##17166C	1.00	15.35	1.37	15.35
#FFFFFF	15.35	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296E

Deuteranopia (green-blind)

#00216A

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #17166c;
/* rgb */ color: rgb(23, 22, 108);
/* oklch */ color: oklch(27.8% 0.142 272.7);

Tailwind

colors: {
  custom: {
    50: '#645597',
    500: '#17166c',
    950: '#000000',
  },
}

SCSS

$custom: #17166c;
$custom-light: #645597;
$custom-dark: #000000;

JSON

{
  "hex": "#17166c",
  "rgb": {
    "r": 23,
    "g": 22,
    "b": 108
  },
  "hsl": {
    "h": 240.698,
    "s": 66.154,
    "l": 25.49
  },
  "oklch": {
    "l": 0.27759,
    "c": 0.14203,
    "h": 272.7
  },
  "luminance": 0.01839
}

Semantic roles & 50–950 ramp

primary

#17166C

secondary

#A1A23C

accent

#E93FE7

background

#F6F4F9

surface

#EBE8F2

border

#C6C4CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #17166C

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

Preview Lab → · Contrast checker → · Palette generator →