#171975#171975

#171975 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.3% C 0.151 H 271.3°. Best body text is #FFFFFF at 14.66:1 contrast (WCAG AA passes).

Color values

HEX	#171975
RGB	rgb(23, 25, 117)
HSL	hsl(239, 67%, 27%)
HSV	hsv(239, 80%, 46%)
CMYK	cmyk(80.3%, 78.6%, 0%, 54.1%)
CIE-LAB	lab(16.31, 33.34, -52.06)
CIE-LCH	lch(16.31, 61.82, 302.63°)
OKLab	oklab(29.27% 0.0035 -0.1507)
OKLCH	oklch(29.27% 0.151 271.3)
XYZ	xyz(3.9108, 2.1613, 17.0372)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171975 #757317

analogous

#174875 #171975 #441775

triadic

#171975 #751719 #197517

tetradic

#171975 #751748 #757317 #177544

square

#171975 #751748 #757317 #177544

split-complementary

#171975 #754417 #487517

monochromatic

#05051A #0D0E42 #171975 #2124A8 #3034D6

Accessibility & contrast

On white

14.66

#171975 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#171975 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171975

14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171975	#FFFFFF	#000000	##FFFFFF
##171975	1.00	14.66	1.43	14.66
#FFFFFF	14.66	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D78

Deuteranopia (green-blind)

#002473

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #171975;
/* rgb */ color: rgb(23, 25, 117);
/* oklch */ color: oklch(29.3% 0.151 271.3);

Tailwind

colors: {
  custom: {
    50: '#67579e',
    500: '#171975',
    950: '#000000',
  },
}

SCSS

$custom: #171975;
$custom-light: #67579e;
$custom-dark: #000000;

JSON

{
  "hex": "#171975",
  "rgb": {
    "r": 23,
    "g": 25,
    "b": 117
  },
  "hsl": {
    "h": 238.723,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.29272,
    "c": 0.15078,
    "h": 271.3
  },
  "luminance": 0.02162
}

Semantic roles & 50–950 ramp

primary

#171975

secondary

#AAA83D

accent

#E63EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #171975

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

Preview Lab → · Contrast checker → · Palette generator →