#17177F#17177F

#17177F is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.2% C 0.165 H 270.7°. Best body text is #FFFFFF at 14.33:1 contrast (WCAG AA passes).

Color values

HEX	#17177F
RGB	rgb(23, 23, 127)
HSL	hsl(240, 69%, 29%)
HSV	hsv(240, 82%, 50%)
CMYK	cmyk(81.9%, 81.9%, 0%, 50.2%)
CIE-LAB	lab(17.12, 38.00, -57.13)
CIE-LCH	lch(17.12, 68.61, 303.62°)
OKLab	oklab(30.19% 0.0022 -0.1654)
OKLCH	oklch(30.19% 0.165 270.7)
XYZ	xyz(4.4892, 2.3267, 20.2871)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17177F #7F7F17

analogous

#174B7F #17177F #4B177F

triadic

#17177F #7F1717 #177F17

tetradic

#17177F #7F174B #7F7F17 #177F4B

square

#17177F #7F174B #7F7F17 #177F4B

split-complementary

#17177F #7F4B17 #4B7F17

monochromatic

#05051A #0E0E4B #17177F #2020B3 #3636DB

Accessibility & contrast

On white

14.33

#17177F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#17177F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17177F

14.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17177F	#FFFFFF	#000000	##FFFFFF
##17177F	1.00	14.33	1.47	14.33
#FFFFFF	14.33	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F82

Deuteranopia (green-blind)

#00257D

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #17177f;
/* rgb */ color: rgb(23, 23, 127);
/* oklch */ color: oklch(30.2% 0.165 270.7);

Tailwind

colors: {
  custom: {
    50: '#6a56a5',
    500: '#17177f',
    950: '#000000',
  },
}

SCSS

$custom: #17177f;
$custom-light: #6a56a5;
$custom-dark: #000000;

JSON

{
  "hex": "#17177f",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 127
  },
  "hsl": {
    "h": 240,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.3019,
    "c": 0.16543,
    "h": 270.7
  },
  "luminance": 0.02327
}

Semantic roles & 50–950 ramp

primary

#17177F

secondary

#B4B43E

accent

#EC3CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #17177F

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

Preview Lab → · Contrast checker → · Palette generator →