#170B51#170B51

#170B51 is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.9% C 0.117 H 279.6°. Best body text is #FFFFFF at 17.45:1 contrast (WCAG AA passes).

Color values

HEX	#170B51
RGB	rgb(23, 11, 81)
HSL	hsl(250, 76%, 18%)
HSV	hsv(250, 86%, 32%)
CMYK	cmyk(71.6%, 86.4%, 0%, 68.2%)
CIE-LAB	lab(9.12, 28.79, -40.02)
CIE-LCH	lch(9.12, 49.30, 305.73°)
OKLab	oklab(22.94% 0.0196 -0.1156)
OKLCH	oklch(22.94% 0.117 279.6)
XYZ	xyz(1.9578, 1.0154, 7.8758)
Luminance	0.0102 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B51 #45510B

analogous

#0B2251 #170B51 #3A0B51

triadic

#170B51 #51170B #0B5117

tetradic

#170B51 #510B22 #45510B #0B513A

square

#170B51 #510B22 #45510B #0B513A

split-complementary

#170B51 #513A0B #22510B

monochromatic

#08041B #08041B #170B51 #261287 #361ABD

Accessibility & contrast

On white

17.45

#170B51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#170B51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B51

17.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B51	#FFFFFF	#000000	##FFFFFF
##170B51	1.00	17.45	1.20	17.45
#FFFFFF	17.45	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C53

Deuteranopia (green-blind)

#001750

Tritanopia (blue-blind)

#00202E

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #170b51;
/* rgb */ color: rgb(23, 11, 81);
/* oklch */ color: oklch(22.9% 0.117 279.6);

Tailwind

colors: {
  custom: {
    50: '#5e4c83',
    500: '#170b51',
    950: '#000000',
  },
}

SCSS

$custom: #170b51;
$custom-light: #5e4c83;
$custom-dark: #000000;

JSON

{
  "hex": "#170b51",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 81
  },
  "hsl": {
    "h": 250.286,
    "s": 76.087,
    "l": 18.039
  },
  "oklch": {
    "l": 0.2294,
    "c": 0.11721,
    "h": 279.6
  },
  "luminance": 0.01016
}

Semantic roles & 50–950 ramp

primary

#170B51

secondary

#7C8D2B

accent

#F335D2

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010B

muted

#79777C

Preview Lab

Preview with #170B51

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

Preview Lab → · Contrast checker → · Palette generator →