#171C96#171C96

#171C96 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.189 H 268.9°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#171C96
RGB	rgb(23, 28, 150)
HSL	hsl(238, 73%, 34%)
HSV	hsv(238, 85%, 59%)
CMYK	cmyk(84.7%, 81.3%, 0%, 41.2%)
CIE-LAB	lab(20.88, 43.08, -65.30)
CIE-LCH	lch(20.88, 78.22, 303.41°)
OKLab	oklab(33.64% -0.0037 -0.1891)
OKLCH	oklch(33.64% 0.189 268.9)
XYZ	xyz(6.2717, 3.2139, 29.1380)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171C96 #969117

analogous

#175C96 #171C96 #521796

triadic

#171C96 #96171C #1C9617

tetradic

#171C96 #96175C #969117 #179652

square

#171C96 #96175C #969117 #179652

split-complementary

#171C96 #965217 #5C9617

monochromatic

#07082C #0F1261 #171C96 #1F26CB #454BE2

Accessibility & contrast

On white

12.78

#171C96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#171C96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171C96

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171C96	#FFFFFF	#000000	##FFFFFF
##171C96	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003999

Deuteranopia (green-blind)

#002C94

Tritanopia (blue-blind)

#004259

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #171c96;
/* rgb */ color: rgb(23, 28, 150);
/* oklch */ color: oklch(33.6% 0.189 268.9);

Tailwind

colors: {
  custom: {
    50: '#705bb6',
    500: '#171c96',
    950: '#000000',
  },
}

SCSS

$custom: #171c96;
$custom-light: #705bb6;
$custom-dark: #000000;

JSON

{
  "hex": "#171c96",
  "rgb": {
    "r": 23,
    "g": 28,
    "b": 150
  },
  "hsl": {
    "h": 237.638,
    "s": 73.41,
    "l": 33.922
  },
  "oklch": {
    "l": 0.33644,
    "c": 0.18918,
    "h": 268.9
  },
  "luminance": 0.03215
}

Semantic roles & 50–950 ramp

primary

#171C96

secondary

#C3BE45

accent

#E938F0

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #171C96

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

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