#171055#171055

#171055 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 24.1% C 0.117 H 277.5°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).

Color values

HEX	#171055
RGB	rgb(23, 16, 85)
HSL	hsl(246, 68%, 20%)
HSV	hsv(246, 81%, 33%)
CMYK	cmyk(72.9%, 81.2%, 0%, 66.7%)
CIE-LAB	lab(10.62, 27.28, -40.28)
CIE-LCH	lch(10.62, 48.65, 304.10°)
OKLab	oklab(24.14% 0.0153 -0.1164)
OKLCH	oklch(24.14% 0.117 277.5)
XYZ	xyz(2.1778, 1.2084, 8.7111)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171055 #4E5510

analogous

#102C55 #171055 #3A1055

triadic

#171055 #551710 #105517

tetradic

#171055 #55102C #4E5510 #10553A

square

#171055 #55102C #4E5510 #10553A

split-complementary

#171055 #553A10 #2C5510

monochromatic

#07051A #090621 #171055 #251A89 #3323BC

Accessibility & contrast

On white

16.91

#171055 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#171055 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171055

16.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171055	#FFFFFF	#000000	##FFFFFF
##171055	1.00	16.91	1.24	16.91
#FFFFFF	16.91	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F57

Deuteranopia (green-blind)

#001A54

Tritanopia (blue-blind)

#002431

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #171055;
/* rgb */ color: rgb(23, 16, 85);
/* oklch */ color: oklch(24.1% 0.117 277.5);

Tailwind

colors: {
  custom: {
    50: '#5f4f86',
    500: '#171055',
    950: '#000000',
  },
}

SCSS

$custom: #171055;
$custom-light: #5f4f86;
$custom-dark: #000000;

JSON

{
  "hex": "#171055",
  "rgb": {
    "r": 23,
    "g": 16,
    "b": 85
  },
  "hsl": {
    "h": 246.087,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.24135,
    "c": 0.11738,
    "h": 277.5
  },
  "luminance": 0.01209
}

Semantic roles & 50–950 ramp

primary

#171055

secondary

#858F32

accent

#EB3DD9

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #171055

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

Preview Lab → · Contrast checker → · Palette generator →