#170F3B#170F3B

#170F3B is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 21.1% C 0.081 H 285.5°. Best body text is #FFFFFF at 17.98:1 contrast (WCAG AA passes).

Color values

HEX	#170F3B
RGB	rgb(23, 15, 59)
HSL	hsl(251, 59%, 15%)
HSV	hsv(251, 75%, 23%)
CMYK	cmyk(61%, 74.6%, 0%, 76.9%)
CIE-LAB	lab(7.58, 18.33, -27.07)
CIE-LCH	lch(7.58, 32.70, 304.10°)
OKLab	oklab(21.11% 0.0216 -0.0777)
OKLCH	oklch(21.11% 0.081 285.5)
XYZ	xyz(1.3134, 0.8395, 4.2297)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170F3B #333B0F

analogous

#0F1D3B #170F3B #2D0F3B

triadic

#170F3B #3B170F #0F3B17

tetradic

#170F3B #3B0F1D #333B0F #0F3B2D

square

#170F3B #3B0F1D #333B0F #0F3B2D

split-complementary

#170F3B #3B2D0F #1D3B0F

monochromatic

#0A0618 #0A0618 #170F3B #2A1B6C #3D289D

Accessibility & contrast

On white

17.98

#170F3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#170F3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170F3B

17.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170F3B	#FFFFFF	#000000	##FFFFFF
##170F3B	1.00	17.98	1.17	17.98
#FFFFFF	17.98	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183C

Deuteranopia (green-blind)

#00153A

Tritanopia (blue-blind)

#081A23

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #170f3b;
/* rgb */ color: rgb(23, 15, 59);
/* oklch */ color: oklch(21.1% 0.081 285.5);

Tailwind

colors: {
  custom: {
    50: '#584d71',
    500: '#170f3b',
    950: '#000000',
  },
}

SCSS

$custom: #170f3b;
$custom-light: #584d71;
$custom-dark: #000000;

JSON

{
  "hex": "#170f3b",
  "rgb": {
    "r": 23,
    "g": 15,
    "b": 59
  },
  "hsl": {
    "h": 250.909,
    "s": 59.459,
    "l": 14.51
  },
  "oklch": {
    "l": 0.21105,
    "c": 0.08068,
    "h": 285.5
  },
  "luminance": 0.0084
}

Semantic roles & 50–950 ramp

primary

#170F3B

secondary

#697530

accent

#E345C6

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040108

muted

#79777B

Preview Lab

Preview with #170F3B

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

Preview Lab → · Contrast checker → · Palette generator →