#171981#171981

#171981 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.166 H 270.4°. Best body text is #FFFFFF at 14.07:1 contrast (WCAG AA passes).

Color values

HEX	#171981
RGB	rgb(23, 25, 129)
HSL	hsl(239, 70%, 30%)
HSV	hsv(239, 82%, 51%)
CMYK	cmyk(82.2%, 80.6%, 0%, 49.4%)
CIE-LAB	lab(17.75, 37.57, -57.36)
CIE-LCH	lch(17.75, 68.57, 303.23°)
OKLab	oklab(30.7% 0.0011 -0.1661)
OKLCH	oklch(30.7% 0.166 270.4)
XYZ	xyz(4.6621, 2.4619, 20.9941)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171981 #817F17

analogous

#174E81 #171981 #4A1781

triadic

#171981 #811719 #198117

tetradic

#171981 #81174E #817F17 #17814A

square

#171981 #81174E #817F17 #17814A

split-complementary

#171981 #814A17 #4E8117

monochromatic

#05051A #0E0F4D #171981 #2023B5 #373ADB

Accessibility & contrast

On white

14.07

#171981 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#171981 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171981

14.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171981	#FFFFFF	#000000	##FFFFFF
##171981	1.00	14.07	1.49	14.07
#FFFFFF	14.07	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003184

Deuteranopia (green-blind)

#00267F

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #171981;
/* rgb */ color: rgb(23, 25, 129);
/* oklch */ color: oklch(30.7% 0.166 270.4);

Tailwind

colors: {
  custom: {
    50: '#6a58a7',
    500: '#171981',
    950: '#000000',
  },
}

SCSS

$custom: #171981;
$custom-light: #6a58a7;
$custom-dark: #000000;

JSON

{
  "hex": "#171981",
  "rgb": {
    "r": 23,
    "g": 25,
    "b": 129
  },
  "hsl": {
    "h": 238.868,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.30702,
    "c": 0.16611,
    "h": 270.4
  },
  "luminance": 0.02462
}

Semantic roles & 50–950 ramp

primary

#171981

secondary

#B5B33E

accent

#E93BED

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080310

muted

#7A787F

Preview Lab

Preview with #171981

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

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