#171880#171880

#171880 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.166 H 270.6°. Best body text is #FFFFFF at 14.20:1 contrast (WCAG AA passes).

Color values

HEX	#171880
RGB	rgb(23, 24, 128)
HSL	hsl(239, 70%, 30%)
HSV	hsv(239, 82%, 50%)
CMYK	cmyk(82%, 81.3%, 0%, 49.8%)
CIE-LAB	lab(17.43, 37.79, -57.25)
CIE-LCH	lch(17.43, 68.60, 303.43°)
OKLab	oklab(30.45% 0.0016 -0.1658)
OKLCH	oklch(30.45% 0.166 270.6)
XYZ	xyz(4.5749, 2.3934, 20.6387)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171880 #807F17

analogous

#174C80 #171880 #4B1780

triadic

#171880 #801718 #188017

tetradic

#171880 #80174C #807F17 #17804B

square

#171880 #80174C #807F17 #17804B

split-complementary

#171880 #804B17 #4C8017

monochromatic

#05051A #0E0E4C #171880 #2022B4 #3638DB

Accessibility & contrast

On white

14.20

#171880 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#171880 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171880

14.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171880	#FFFFFF	#000000	##FFFFFF
##171880	1.00	14.20	1.48	14.20
#FFFFFF	14.20	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003083

Deuteranopia (green-blind)

#00257E

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #171880;
/* rgb */ color: rgb(23, 24, 128);
/* oklch */ color: oklch(30.4% 0.166 270.6);

Tailwind

colors: {
  custom: {
    50: '#6a57a6',
    500: '#171880',
    950: '#000000',
  },
}

SCSS

$custom: #171880;
$custom-light: #6a57a6;
$custom-dark: #000000;

JSON

{
  "hex": "#171880",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 128
  },
  "hsl": {
    "h": 239.429,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.30445,
    "c": 0.16579,
    "h": 270.6
  },
  "luminance": 0.02394
}

Semantic roles & 50–950 ramp

primary

#171880

secondary

#B4B33E

accent

#EB3BEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #171880

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

Preview Lab → · Contrast checker → · Palette generator →