#171881#171881

#171881 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.6% C 0.167 H 270.5°. Best body text is #FFFFFF at 14.15:1 contrast (WCAG AA passes).

Color values

HEX	#171881
RGB	rgb(23, 24, 129)
HSL	hsl(239, 70%, 30%)
HSV	hsv(239, 82%, 51%)
CMYK	cmyk(82.2%, 81.4%, 0%, 49.4%)
CIE-LAB	lab(17.55, 38.13, -57.68)
CIE-LCH	lch(17.55, 69.14, 303.47°)
OKLab	oklab(30.57% 0.0014 -0.167)
OKLCH	oklch(30.57% 0.167 270.5)
XYZ	xyz(4.6411, 2.4199, 20.9871)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171881 #818017

analogous

#174D81 #171881 #4B1781

triadic

#171881 #811718 #188117

tetradic

#171881 #81174D #818017 #17814B

square

#171881 #81174D #818017 #17814B

split-complementary

#171881 #814B17 #4D8117

monochromatic

#05051A #0E0E4D #171881 #2022B5 #3739DB

Accessibility & contrast

On white

14.15

#171881 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#171881 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171881

14.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171881	#FFFFFF	#000000	##FFFFFF
##171881	1.00	14.15	1.48	14.15
#FFFFFF	14.15	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003084

Deuteranopia (green-blind)

#00267F

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #171881;
/* rgb */ color: rgb(23, 24, 129);
/* oklch */ color: oklch(30.6% 0.167 270.5);

Tailwind

colors: {
  custom: {
    50: '#6a57a7',
    500: '#171881',
    950: '#000000',
  },
}

SCSS

$custom: #171881;
$custom-light: #6a57a7;
$custom-dark: #000000;

JSON

{
  "hex": "#171881",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 129
  },
  "hsl": {
    "h": 239.434,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.30567,
    "c": 0.16704,
    "h": 270.5
  },
  "luminance": 0.0242
}

Semantic roles & 50–950 ramp

primary

#171881

secondary

#B5B43E

accent

#EB3BED

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #171881

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

Preview Lab → · Contrast checker → · Palette generator →