#171A79#171A79

#171A79 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.155 H 270.9°. Best body text is #FFFFFF at 14.38:1 contrast (WCAG AA passes).

Color values

HEX	#171A79
RGB	rgb(23, 26, 121)
HSL	hsl(238, 68%, 28%)
HSV	hsv(238, 81%, 47%)
CMYK	cmyk(81%, 78.5%, 0%, 52.5%)
CIE-LAB	lab(16.99, 34.17, -53.51)
CIE-LCH	lch(16.99, 63.49, 302.57°)
OKLab	oklab(29.89% 0.0023 -0.1549)
OKLCH	oklch(29.89% 0.155 270.9)
XYZ	xyz(4.1728, 2.3010, 18.3097)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A79 #797617

analogous

#174B79 #171A79 #451779

triadic

#171A79 #79171A #1A7917

tetradic

#171A79 #79174B #797617 #177945

square

#171A79 #79174B #797617 #177945

split-complementary

#171A79 #794517 #4B7917

monochromatic

#05061A #0D0F46 #171A79 #2125AC #3237D8

Accessibility & contrast

On white

14.38

#171A79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#171A79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A79

14.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A79	#FFFFFF	#000000	##FFFFFF
##171A79	1.00	14.38	1.46	14.38
#FFFFFF	14.38	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7C

Deuteranopia (green-blind)

#002577

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #171a79;
/* rgb */ color: rgb(23, 26, 121);
/* oklch */ color: oklch(29.9% 0.155 270.9);

Tailwind

colors: {
  custom: {
    50: '#6858a1',
    500: '#171a79',
    950: '#000000',
  },
}

SCSS

$custom: #171a79;
$custom-light: #6858a1;
$custom-dark: #000000;

JSON

{
  "hex": "#171a79",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 121
  },
  "hsl": {
    "h": 238.163,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29893,
    "c": 0.15496,
    "h": 270.9
  },
  "luminance": 0.02301
}

Semantic roles & 50–950 ramp

primary

#171A79

secondary

#AEAB3E

accent

#E63DEB

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #171A79

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

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