#170B4F#170B4F

#170B4F is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.7% C 0.115 H 280.2°. Best body text is #FFFFFF at 17.54:1 contrast (WCAG AA passes).

Color values

HEX	#170B4F
RGB	rgb(23, 11, 79)
HSL	hsl(251, 76%, 18%)
HSV	hsv(251, 86%, 31%)
CMYK	cmyk(70.9%, 86.1%, 0%, 69%)
CIE-LAB	lab(8.87, 28.10, -39.05)
CIE-LCH	lch(8.87, 48.11, 305.74°)
OKLab	oklab(22.7% 0.0203 -0.1127)
OKLCH	oklch(22.7% 0.115 280.2)
XYZ	xyz(1.8839, 0.9859, 7.4866)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B4F #434F0B

analogous

#0B214F #170B4F #390B4F

triadic

#170B4F #4F170B #0B4F17

tetradic

#170B4F #4F0B21 #434F0B #0B4F39

square

#170B4F #4F0B21 #434F0B #0B4F39

split-complementary

#170B4F #4F390B #214F0B

monochromatic

#08041B #08041B #170B4F #271285 #361ABA

Accessibility & contrast

On white

17.54

#170B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#170B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B4F

17.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B4F	#FFFFFF	#000000	##FFFFFF
##170B4F	1.00	17.54	1.20	17.54
#FFFFFF	17.54	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C51

Deuteranopia (green-blind)

#00174E

Tritanopia (blue-blind)

#001F2D

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #170b4f;
/* rgb */ color: rgb(23, 11, 79);
/* oklch */ color: oklch(22.7% 0.115 280.2);

Tailwind

colors: {
  custom: {
    50: '#5e4c81',
    500: '#170b4f',
    950: '#000000',
  },
}

SCSS

$custom: #170b4f;
$custom-light: #5e4c81;
$custom-dark: #000000;

JSON

{
  "hex": "#170b4f",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 79
  },
  "hsl": {
    "h": 250.588,
    "s": 75.556,
    "l": 17.647
  },
  "oklch": {
    "l": 0.22696,
    "c": 0.11454,
    "h": 280.2
  },
  "luminance": 0.00986
}

Semantic roles & 50–950 ramp

primary

#170B4F

secondary

#7A8B2B

accent

#F236D1

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010A

muted

#79777C

Preview Lab

Preview with #170B4F

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

Preview Lab → · Contrast checker → · Palette generator →