#171F86#171F86

#171F86 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.2% C 0.167 H 269.4°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#171F86
RGB	rgb(23, 31, 134)
HSL	hsl(236, 71%, 31%)
HSV	hsv(236, 83%, 53%)
CMYK	cmyk(82.8%, 76.9%, 0%, 47.5%)
CIE-LAB	lab(19.57, 35.83, -57.50)
CIE-LCH	lch(19.57, 67.75, 301.93°)
OKLab	oklab(32.16% -0.0018 -0.1666)
OKLCH	oklch(32.16% 0.167 269.4)
XYZ	xyz(5.1449, 2.8828, 22.8349)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171F86 #867E17

analogous

#175686 #171F86 #461786

triadic

#171F86 #86171F #1F8617

tetradic

#171F86 #861756 #867E17 #178646

square

#171F86 #861756 #867E17 #178646

split-complementary

#171F86 #864617 #568617

monochromatic

#05071E #0E1352 #171F86 #202BBA #3A46DD

Accessibility & contrast

On white

13.32

#171F86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#171F86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171F86

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171F86	#FFFFFF	#000000	##FFFFFF
##171F86	1.00	13.32	1.58	13.32
#FFFFFF	13.32	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003589

Deuteranopia (green-blind)

#002A84

Tritanopia (blue-blind)

#003D51

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #171f86;
/* rgb */ color: rgb(23, 31, 134);
/* oklch */ color: oklch(32.2% 0.167 269.4);

Tailwind

colors: {
  custom: {
    50: '#6b5caa',
    500: '#171f86',
    950: '#000000',
  },
}

SCSS

$custom: #171f86;
$custom-light: #6b5caa;
$custom-dark: #000000;

JSON

{
  "hex": "#171f86",
  "rgb": {
    "r": 23,
    "g": 31,
    "b": 134
  },
  "hsl": {
    "h": 235.676,
    "s": 70.701,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32163,
    "c": 0.1666,
    "h": 269.4
  },
  "luminance": 0.02883
}

Semantic roles & 50–950 ramp

primary

#171F86

secondary

#BAB13F

accent

#E13AED

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #171F86

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

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