#171C86#171C86

#171C86 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.7% C 0.170 H 269.7°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#171C86
RGB	rgb(23, 28, 134)
HSL	hsl(237, 71%, 31%)
HSV	hsv(237, 83%, 53%)
CMYK	cmyk(82.8%, 79.1%, 0%, 47.5%)
CIE-LAB	lab(18.94, 37.61, -58.54)
CIE-LCH	lch(18.94, 69.58, 302.72°)
OKLab	oklab(31.72% -0.0008 -0.1696)
OKLCH	oklch(31.72% 0.17 269.7)
XYZ	xyz(5.0702, 2.7333, 22.8100)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171C86 #868117

analogous

#175386 #171C86 #491786

triadic

#171C86 #86171C #1C8617

tetradic

#171C86 #861753 #868117 #178649

square

#171C86 #861753 #868117 #178649

split-complementary

#171C86 #864917 #538617

monochromatic

#05061E #0E1152 #171C86 #2027BA #3A42DD

Accessibility & contrast

On white

13.58

#171C86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#171C86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171C86

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171C86	#FFFFFF	#000000	##FFFFFF
##171C86	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003489

Deuteranopia (green-blind)

#002884

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #171c86;
/* rgb */ color: rgb(23, 28, 134);
/* oklch */ color: oklch(31.7% 0.170 269.7);

Tailwind

colors: {
  custom: {
    50: '#6b5aaa',
    500: '#171c86',
    950: '#000000',
  },
}

SCSS

$custom: #171c86;
$custom-light: #6b5aaa;
$custom-dark: #000000;

JSON

{
  "hex": "#171c86",
  "rgb": {
    "r": 23,
    "g": 28,
    "b": 134
  },
  "hsl": {
    "h": 237.297,
    "s": 70.701,
    "l": 30.784
  },
  "oklch": {
    "l": 0.3172,
    "c": 0.16956,
    "h": 269.7
  },
  "luminance": 0.02734
}

Semantic roles & 50–950 ramp

primary

#171C86

secondary

#BAB43F

accent

#E53AED

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #171C86

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

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