#170B4A#170B4A

#170B4A is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 22.1% C 0.108 H 281.7°. Best body text is #FFFFFF at 17.75:1 contrast (WCAG AA passes).

Color values

HEX	#170B4A
RGB	rgb(23, 11, 74)
HSL	hsl(251, 74%, 17%)
HSV	hsv(251, 85%, 29%)
CMYK	cmyk(68.9%, 85.1%, 0%, 71%)
CIE-LAB	lab(8.27, 26.37, -36.58)
CIE-LCH	lch(8.27, 45.09, 305.79°)
OKLab	oklab(22.1% 0.0219 -0.1055)
OKLCH	oklch(22.1% 0.108 281.7)
XYZ	xyz(1.7087, 0.9158, 6.5640)
Luminance	0.0092 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.63

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B4A #3E4A0B

analogous

#0B1F4A #170B4A #370B4A

triadic

#170B4A #4A170B #0B4A17

tetradic

#170B4A #4A0B1F #3E4A0B #0B4A37

square

#170B4A #4A0B1F #3E4A0B #0B4A37

split-complementary

#170B4A #4A370B #1F4A0B

monochromatic

#08041B #08041B #170B4A #28137F #381BB5

Accessibility & contrast

On white

17.75

#170B4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#170B4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B4A

17.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B4A	#FFFFFF	#000000	##FFFFFF
##170B4A	1.00	17.75	1.18	17.75
#FFFFFF	17.75	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A4C

Deuteranopia (green-blind)

#001649

Tritanopia (blue-blind)

#001D2A

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #170b4a;
/* rgb */ color: rgb(23, 11, 74);
/* oklch */ color: oklch(22.1% 0.108 281.7);

Tailwind

colors: {
  custom: {
    50: '#5c4c7d',
    500: '#170b4a',
    950: '#000000',
  },
}

SCSS

$custom: #170b4a;
$custom-light: #5c4c7d;
$custom-dark: #000000;

JSON

{
  "hex": "#170b4a",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 74
  },
  "hsl": {
    "h": 251.429,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.22095,
    "c": 0.10776,
    "h": 281.7
  },
  "luminance": 0.00916
}

Semantic roles & 50–950 ramp

primary

#170B4A

secondary

#75862B

accent

#F137CD

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #170B4A

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

Preview Lab → · Contrast checker → · Palette generator →