#171155#171155

#171155 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 24.3% C 0.116 H 277.2°. Best body text is #FFFFFF at 16.83:1 contrast (WCAG AA passes).

Color values

HEX	#171155
RGB	rgb(23, 17, 85)
HSL	hsl(245, 67%, 20%)
HSV	hsv(245, 80%, 33%)
CMYK	cmyk(72.9%, 80%, 0%, 66.7%)
CIE-LAB	lab(10.84, 26.65, -39.92)
CIE-LCH	lch(10.84, 48.00, 303.73°)
OKLab	oklab(24.29% 0.0146 -0.1153)
OKLCH	oklch(24.29% 0.116 277.2)
XYZ	xyz(2.1930, 1.2387, 8.7161)
Luminance	0.0124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171155 #4F5511

analogous

#112D55 #171155 #391155

triadic

#171155 #551711 #115517

tetradic

#171155 #55112D #4F5511 #115539

square

#171155 #55112D #4F5511 #115539

split-complementary

#171155 #553911 #2D5511

monochromatic

#07051A #090722 #171155 #251B88 #3325BB

Accessibility & contrast

On white

16.83

#171155 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#171155 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171155

16.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171155	#FFFFFF	#000000	##FFFFFF
##171155	1.00	16.83	1.25	16.83
#FFFFFF	16.83	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002057

Deuteranopia (green-blind)

#001A54

Tritanopia (blue-blind)

#002432

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #171155;
/* rgb */ color: rgb(23, 17, 85);
/* oklch */ color: oklch(24.3% 0.116 277.2);

Tailwind

colors: {
  custom: {
    50: '#5f5086',
    500: '#171155',
    950: '#000000',
  },
}

SCSS

$custom: #171155;
$custom-light: #5f5086;
$custom-dark: #000000;

JSON

{
  "hex": "#171155",
  "rgb": {
    "r": 23,
    "g": 17,
    "b": 85
  },
  "hsl": {
    "h": 245.294,
    "s": 66.667,
    "l": 20
  },
  "oklch": {
    "l": 0.24291,
    "c": 0.11624,
    "h": 277.2
  },
  "luminance": 0.01239
}

Semantic roles & 50–950 ramp

primary

#171155

secondary

#868E34

accent

#EA3EDA

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #171155

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

Preview Lab → · Contrast checker → · Palette generator →