#17177B#17177B

#17177B is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.160 H 271.1°. Best body text is #FFFFFF at 14.53:1 contrast (WCAG AA passes).

Color values

HEX	#17177B
RGB	rgb(23, 23, 123)
HSL	hsl(240, 68%, 29%)
HSV	hsv(240, 81%, 48%)
CMYK	cmyk(81.3%, 81.3%, 0%, 51.8%)
CIE-LAB	lab(16.62, 36.62, -55.40)
CIE-LCH	lch(16.62, 66.41, 303.47°)
OKLab	oklab(29.7% 0.003 -0.1604)
OKLCH	oklch(29.7% 0.16 271.1)
XYZ	xyz(4.2337, 2.2245, 18.9413)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17177B #7B7B17

analogous

#17497B #17177B #49177B

triadic

#17177B #7B1717 #177B17

tetradic

#17177B #7B1749 #7B7B17 #177B49

square

#17177B #7B1749 #7B7B17 #177B49

split-complementary

#17177B #7B4917 #497B17

monochromatic

#05051A #0D0D47 #17177B #2121AF #3333D9

Accessibility & contrast

On white

14.53

#17177B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#17177B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17177B

14.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17177B	#FFFFFF	#000000	##FFFFFF
##17177B	1.00	14.53	1.45	14.53
#FFFFFF	14.53	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7E

Deuteranopia (green-blind)

#002479

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #17177b;
/* rgb */ color: rgb(23, 23, 123);
/* oklch */ color: oklch(29.7% 0.160 271.1);

Tailwind

colors: {
  custom: {
    50: '#6856a2',
    500: '#17177b',
    950: '#000000',
  },
}

SCSS

$custom: #17177b;
$custom-light: #6856a2;
$custom-dark: #000000;

JSON

{
  "hex": "#17177b",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 123
  },
  "hsl": {
    "h": 240,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.29702,
    "c": 0.16042,
    "h": 271.1
  },
  "luminance": 0.02225
}

Semantic roles & 50–950 ramp

primary

#17177B

secondary

#B0B03E

accent

#EB3CEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #17177B

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

Preview Lab → · Contrast checker → · Palette generator →