#171777#171777

#171777 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.2% C 0.155 H 271.4°. Best body text is #FFFFFF at 14.73:1 contrast (WCAG AA passes).

Color values

HEX	#171777
RGB	rgb(23, 23, 119)
HSL	hsl(240, 68%, 28%)
HSV	hsv(240, 81%, 47%)
CMYK	cmyk(80.7%, 80.7%, 0%, 53.3%)
CIE-LAB	lab(16.14, 35.23, -53.64)
CIE-LCH	lch(16.14, 64.17, 303.29°)
OKLab	oklab(29.22% 0.0039 -0.1553)
OKLCH	oklch(29.22% 0.155 271.4)
XYZ	xyz(3.9884, 2.1264, 17.6494)
Luminance	0.0213 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171777 #777717

analogous

#174777 #171777 #471777

triadic

#171777 #771717 #177717

tetradic

#171777 #771747 #777717 #177747

square

#171777 #771747 #777717 #177747

split-complementary

#171777 #774717 #477717

monochromatic

#05051A #0D0D44 #171777 #2121AA #3131D7

Accessibility & contrast

On white

14.73

#171777 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#171777 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171777

14.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171777	#FFFFFF	#000000	##FFFFFF
##171777	1.00	14.73	1.43	14.73
#FFFFFF	14.73	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7A

Deuteranopia (green-blind)

#002375

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #171777;
/* rgb */ color: rgb(23, 23, 119);
/* oklch */ color: oklch(29.2% 0.155 271.4);

Tailwind

colors: {
  custom: {
    50: '#67569f',
    500: '#171777',
    950: '#000000',
  },
}

SCSS

$custom: #171777;
$custom-light: #67569f;
$custom-dark: #000000;

JSON

{
  "hex": "#171777",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 119
  },
  "hsl": {
    "h": 240,
    "s": 67.606,
    "l": 27.843
  },
  "oklch": {
    "l": 0.29219,
    "c": 0.15534,
    "h": 271.4
  },
  "luminance": 0.02127
}

Semantic roles & 50–950 ramp

primary

#171777

secondary

#ACAC3E

accent

#EA3DEA

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #171777

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

Preview Lab → · Contrast checker → · Palette generator →