#170B4C#170B4C

#170B4C is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 22.3% C 0.110 H 281.1°. Best body text is #FFFFFF at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#170B4C
RGB	rgb(23, 11, 76)
HSL	hsl(251, 75%, 17%)
HSV	hsv(251, 86%, 30%)
CMYK	cmyk(69.7%, 85.5%, 0%, 70.2%)
CIE-LAB	lab(8.51, 27.06, -37.57)
CIE-LCH	lch(8.51, 46.31, 305.77°)
OKLab	oklab(22.33% 0.0212 -0.1084)
OKLCH	oklch(22.33% 0.11 281.1)
XYZ	xyz(1.7771, 0.9432, 6.9245)
Luminance	0.0094 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.89

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B4C #404C0B

analogous

#0B204C #170B4C #380B4C

triadic

#170B4C #4C170B #0B4C17

tetradic

#170B4C #4C0B20 #404C0B #0B4C38

square

#170B4C #4C0B20 #404C0B #0B4C38

split-complementary

#170B4C #4C380B #204C0B

monochromatic

#08041B #08041B #170B4C #271381 #371AB7

Accessibility & contrast

On white

17.67

#170B4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#170B4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B4C

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B4C	#FFFFFF	#000000	##FFFFFF
##170B4C	1.00	17.67	1.19	17.67
#FFFFFF	17.67	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4E

Deuteranopia (green-blind)

#00164B

Tritanopia (blue-blind)

#001E2B

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #170b4c;
/* rgb */ color: rgb(23, 11, 76);
/* oklch */ color: oklch(22.3% 0.110 281.1);

Tailwind

colors: {
  custom: {
    50: '#5d4c7f',
    500: '#170b4c',
    950: '#000000',
  },
}

SCSS

$custom: #170b4c;
$custom-light: #5d4c7f;
$custom-dark: #000000;

JSON

{
  "hex": "#170b4c",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 76
  },
  "hsl": {
    "h": 251.077,
    "s": 74.713,
    "l": 17.059
  },
  "oklch": {
    "l": 0.22334,
    "c": 0.11049,
    "h": 281.1
  },
  "luminance": 0.00943
}

Semantic roles & 50–950 ramp

primary

#170B4C

secondary

#77882B

accent

#F136CF

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #170B4C

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

Preview Lab → · Contrast checker → · Palette generator →