#171E85#171E85

#171E85 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.9% C 0.166 H 269.6°. Best body text is #FFFFFF at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#171E85
RGB	rgb(23, 30, 133)
HSL	hsl(236, 71%, 31%)
HSV	hsv(236, 83%, 52%)
CMYK	cmyk(82.7%, 77.4%, 0%, 47.8%)
CIE-LAB	lab(19.24, 36.07, -57.42)
CIE-LCH	lch(19.24, 67.81, 302.14°)
OKLab	oklab(31.9% -0.0012 -0.1663)
OKLCH	oklch(31.9% 0.166 269.6)
XYZ	xyz(5.0498, 2.8036, 22.4608)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E85 #857E17

analogous

#175585 #171E85 #471785

triadic

#171E85 #85171E #1E8517

tetradic

#171E85 #851755 #857E17 #178547

square

#171E85 #851755 #857E17 #178547

split-complementary

#171E85 #854717 #558517

monochromatic

#05061D #0E1251 #171E85 #202AB9 #3A44DD

Accessibility & contrast

On white

13.45

#171E85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#171E85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E85

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E85	#FFFFFF	#000000	##FFFFFF
##171E85	1.00	13.45	1.56	13.45
#FFFFFF	13.45	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003488

Deuteranopia (green-blind)

#002983

Tritanopia (blue-blind)

#003D50

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #171e85;
/* rgb */ color: rgb(23, 30, 133);
/* oklch */ color: oklch(31.9% 0.166 269.6);

Tailwind

colors: {
  custom: {
    50: '#6b5baa',
    500: '#171e85',
    950: '#000000',
  },
}

SCSS

$custom: #171e85;
$custom-light: #6b5baa;
$custom-dark: #000000;

JSON

{
  "hex": "#171e85",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 133
  },
  "hsl": {
    "h": 236.182,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31896,
    "c": 0.16633,
    "h": 269.6
  },
  "luminance": 0.02804
}

Semantic roles & 50–950 ramp

primary

#171E85

secondary

#B9B13F

accent

#E23BED

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #171E85

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

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