#170331#170331

#170331 is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 17.8% C 0.086 H 297.5°. Best body text is #FFFFFF at 19.20:1 contrast (WCAG AA passes).

Color values

HEX	#170331
RGB	rgb(23, 3, 49)
HSL	hsl(266, 88%, 10%)
HSV	hsv(266, 94%, 19%)
CMYK	cmyk(53.1%, 93.9%, 0%, 80.8%)
CIE-LAB	lab(4.24, 20.10, -25.15)
CIE-LCH	lch(4.24, 32.20, 308.63°)
OKLab	oklab(17.83% 0.0396 -0.0761)
OKLCH	oklch(17.83% 0.086 297.5)
XYZ	xyz(0.9401, 0.4690, 2.9461)
Luminance	0.0047 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Purple

#280137

ΔE00 5.26

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170331 #1D3103

analogous

#030631 #170331 #2E0331

triadic

#170331 #311703 #033117

tetradic

#170331 #310306 #1D3103 #03312E

square

#170331 #310306 #1D3103 #03312E

split-complementary

#170331 #312E03 #063103

monochromatic

#0E021D #0E021D #170331 #32076B #4D0AA4

Accessibility & contrast

On white

19.20

#170331 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#170331 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170331

19.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170331	#FFFFFF	#000000	##FFFFFF
##170331	1.00	19.20	1.09	19.20
#FFFFFF	19.20	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F32

Deuteranopia (green-blind)

#000E30

Tritanopia (blue-blind)

#100F19

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #170331;
/* rgb */ color: rgb(23, 3, 49);
/* oklch */ color: oklch(17.8% 0.086 297.5);

Tailwind

colors: {
  custom: {
    50: '#564769',
    500: '#170331',
    950: '#000000',
  },
}

SCSS

$custom: #170331;
$custom-light: #564769;
$custom-dark: #000000;

JSON

{
  "hex": "#170331",
  "rgb": {
    "r": 23,
    "g": 3,
    "b": 49
  },
  "hsl": {
    "h": 266.087,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.17831,
    "c": 0.08581,
    "h": 297.5
  },
  "luminance": 0.00469
}

Semantic roles & 50–950 ramp

primary

#170331

secondary

#4E741B

accent

#FF29A2

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#030006

muted

#78777A

Preview Lab

Preview with #170331

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

Preview Lab → · Contrast checker → · Palette generator →