#17177D#17177D

#17177D is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.163 H 270.9°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#17177D
RGB	rgb(23, 23, 125)
HSL	hsl(240, 69%, 29%)
HSV	hsv(240, 82%, 49%)
CMYK	cmyk(81.6%, 81.6%, 0%, 51%)
CIE-LAB	lab(16.87, 37.31, -56.27)
CIE-LCH	lch(16.87, 67.52, 303.55°)
OKLab	oklab(29.95% 0.0026 -0.1629)
OKLCH	oklch(29.95% 0.163 270.9)
XYZ	xyz(4.3602, 2.2751, 19.6074)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17177D #7D7D17

analogous

#174A7D #17177D #4A177D

triadic

#17177D #7D1717 #177D17

tetradic

#17177D #7D174A #7D7D17 #177D4A

square

#17177D #7D174A #7D7D17 #177D4A

split-complementary

#17177D #7D4A17 #4A7D17

monochromatic

#05051A #0D0D49 #17177D #2121B1 #3535DA

Accessibility & contrast

On white

14.43

#17177D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#17177D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17177D

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17177D	#FFFFFF	#000000	##FFFFFF
##17177D	1.00	14.43	1.46	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F80

Deuteranopia (green-blind)

#00247B

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #17177d;
/* rgb */ color: rgb(23, 23, 125);
/* oklch */ color: oklch(29.9% 0.163 270.9);

Tailwind

colors: {
  custom: {
    50: '#6956a4',
    500: '#17177d',
    950: '#000000',
  },
}

SCSS

$custom: #17177d;
$custom-light: #6956a4;
$custom-dark: #000000;

JSON

{
  "hex": "#17177d",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 125
  },
  "hsl": {
    "h": 240,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.29946,
    "c": 0.16294,
    "h": 270.9
  },
  "luminance": 0.02276
}

Semantic roles & 50–950 ramp

primary

#17177D

secondary

#B2B23E

accent

#EC3CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #17177D

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

Preview Lab → · Contrast checker → · Palette generator →