#170F37#170F37

#170F37 is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 20.7% C 0.074 H 287.2°. Best body text is #FFFFFF at 18.10:1 contrast (WCAG AA passes).

Color values

HEX	#170F37
RGB	rgb(23, 15, 55)
HSL	hsl(252, 57%, 14%)
HSV	hsv(252, 73%, 22%)
CMYK	cmyk(58.2%, 72.7%, 0%, 78.4%)
CIE-LAB	lab(7.22, 16.77, -24.77)
CIE-LCH	lch(7.22, 29.91, 304.10°)
OKLab	oklab(20.71% 0.022 -0.071)
OKLCH	oklch(20.71% 0.074 287.2)
XYZ	xyz(1.2136, 0.7996, 3.7041)
Luminance	0.0080 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight

#03012D

ΔE00 4.66

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170F37 #2F370F

analogous

#0F1B37 #170F37 #2B0F37

triadic

#170F37 #37170F #0F3717

tetradic

#170F37 #370F1B #2F370F #0F372B

square

#170F37 #370F1B #2F370F #0F372B

split-complementary

#170F37 #372B0F #1B370F

monochromatic

#0A0718 #0A0718 #170F37 #2B1C67 #3F2997

Accessibility & contrast

On white

18.10

#170F37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#170F37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170F37

18.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170F37	#FFFFFF	#000000	##FFFFFF
##170F37	1.00	18.10	1.16	18.10
#FFFFFF	18.10	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001738

Deuteranopia (green-blind)

#001536

Tritanopia (blue-blind)

#0C1821

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #170f37;
/* rgb */ color: rgb(23, 15, 55);
/* oklch */ color: oklch(20.7% 0.074 287.2);

Tailwind

colors: {
  custom: {
    50: '#584d6e',
    500: '#170f37',
    950: '#000000',
  },
}

SCSS

$custom: #170f37;
$custom-light: #584d6e;
$custom-dark: #000000;

JSON

{
  "hex": "#170f37",
  "rgb": {
    "r": 23,
    "g": 15,
    "b": 55
  },
  "hsl": {
    "h": 252,
    "s": 57.143,
    "l": 13.725
  },
  "oklch": {
    "l": 0.2071,
    "c": 0.07438,
    "h": 287.2
  },
  "luminance": 0.008
}

Semantic roles & 50–950 ramp

primary

#170F37

secondary

#647131

accent

#E047C2

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030107

muted

#78777A

Preview Lab

Preview with #170F37

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

Preview Lab → · Contrast checker → · Palette generator →