#171A77#171A77

#171A77 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.7% C 0.152 H 271.0°. Best body text is #FFFFFF at 14.48:1 contrast (WCAG AA passes).

Color values

HEX	#171A77
RGB	rgb(23, 26, 119)
HSL	hsl(238, 68%, 28%)
HSV	hsv(238, 81%, 47%)
CMYK	cmyk(80.7%, 78.2%, 0%, 53.3%)
CIE-LAB	lab(16.76, 33.45, -52.61)
CIE-LCH	lch(16.76, 62.35, 302.45°)
OKLab	oklab(29.66% 0.0027 -0.1523)
OKLCH	oklch(29.66% 0.152 271)
XYZ	xyz(4.0514, 2.2524, 17.6704)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A77 #777417

analogous

#174A77 #171A77 #441777

triadic

#171A77 #77171A #1A7717

tetradic

#171A77 #77174A #777417 #177744

square

#171A77 #77174A #777417 #177744

split-complementary

#171A77 #774417 #4A7717

monochromatic

#05061A #0D0F44 #171A77 #2125AA #3136D7

Accessibility & contrast

On white

14.48

#171A77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#171A77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A77

14.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A77	#FFFFFF	#000000	##FFFFFF
##171A77	1.00	14.48	1.45	14.48
#FFFFFF	14.48	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7A

Deuteranopia (green-blind)

#002575

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #171a77;
/* rgb */ color: rgb(23, 26, 119);
/* oklch */ color: oklch(29.7% 0.152 271.0);

Tailwind

colors: {
  custom: {
    50: '#67589f',
    500: '#171a77',
    950: '#000000',
  },
}

SCSS

$custom: #171a77;
$custom-light: #67589f;
$custom-dark: #000000;

JSON

{
  "hex": "#171a77",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 119
  },
  "hsl": {
    "h": 238.125,
    "s": 67.606,
    "l": 27.843
  },
  "oklch": {
    "l": 0.29658,
    "c": 0.15236,
    "h": 271
  },
  "luminance": 0.02253
}

Semantic roles & 50–950 ramp

primary

#171A77

secondary

#ACA93E

accent

#E53DEA

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #171A77

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

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