#170B4D#170B4D

#170B4D is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.5% C 0.112 H 280.8°. Best body text is #FFFFFF at 17.63:1 contrast (WCAG AA passes).

Color values

HEX	#170B4D
RGB	rgb(23, 11, 77)
HSL	hsl(251, 75%, 17%)
HSV	hsv(251, 86%, 30%)
CMYK	cmyk(70.1%, 85.7%, 0%, 69.8%)
CIE-LAB	lab(8.63, 27.41, -38.07)
CIE-LCH	lch(8.63, 46.91, 305.76°)
OKLab	oklab(22.45% 0.0209 -0.1099)
OKLCH	oklch(22.45% 0.112 280.8)
XYZ	xyz(1.8122, 0.9572, 7.1090)
Luminance	0.0096 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B4D #414D0B

analogous

#0B204D #170B4D #380B4D

triadic

#170B4D #4D170B #0B4D17

tetradic

#170B4D #4D0B20 #414D0B #0B4D38

square

#170B4D #4D0B20 #414D0B #0B4D38

split-complementary

#170B4D #4D380B #204D0B

monochromatic

#08041B #08041B #170B4D #271383 #371AB8

Accessibility & contrast

On white

17.63

#170B4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#170B4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B4D

17.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B4D	#FFFFFF	#000000	##FFFFFF
##170B4D	1.00	17.63	1.19	17.63
#FFFFFF	17.63	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4F

Deuteranopia (green-blind)

#00164C

Tritanopia (blue-blind)

#001F2C

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #170b4d;
/* rgb */ color: rgb(23, 11, 77);
/* oklch */ color: oklch(22.5% 0.112 280.8);

Tailwind

colors: {
  custom: {
    50: '#5d4c80',
    500: '#170b4d',
    950: '#000000',
  },
}

SCSS

$custom: #170b4d;
$custom-light: #5d4c80;
$custom-dark: #000000;

JSON

{
  "hex": "#170b4d",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 77
  },
  "hsl": {
    "h": 250.909,
    "s": 75,
    "l": 17.255
  },
  "oklch": {
    "l": 0.22454,
    "c": 0.11184,
    "h": 280.8
  },
  "luminance": 0.00957
}

Semantic roles & 50–950 ramp

primary

#170B4D

secondary

#78892B

accent

#F236D0

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #170B4D

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

Preview Lab → · Contrast checker → · Palette generator →