#170F47#170F47

#170F47 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.4% C 0.099 H 281.3°. Best body text is #FFFFFF at 17.56:1 contrast (WCAG AA passes).

Color values

HEX	#170F47
RGB	rgb(23, 15, 71)
HSL	hsl(249, 65%, 17%)
HSV	hsv(249, 79%, 28%)
CMYK	cmyk(67.6%, 78.9%, 0%, 72.2%)
CIE-LAB	lab(8.81, 22.81, -33.59)
CIE-LCH	lch(8.81, 40.60, 304.18°)
OKLab	oklab(22.38% 0.0194 -0.0968)
OKLCH	oklch(22.38% 0.099 281.3)
XYZ	xyz(1.6611, 0.9786, 6.0614)
Luminance	0.0098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170F47 #3F470F

analogous

#0F2347 #170F47 #330F47

triadic

#170F47 #47170F #0F4717

tetradic

#170F47 #470F23 #3F470F #0F4733

square

#170F47 #470F23 #3F470F #0F4733

split-complementary

#170F47 #47330F #23470F

monochromatic

#080519 #080519 #170F47 #271A7A #3824AC

Accessibility & contrast

On white

17.56

#170F47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#170F47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170F47

17.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170F47	#FFFFFF	#000000	##FFFFFF
##170F47	1.00	17.56	1.20	17.56
#FFFFFF	17.56	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B49

Deuteranopia (green-blind)

#001746

Tritanopia (blue-blind)

#001E29

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #170f47;
/* rgb */ color: rgb(23, 15, 71);
/* oklch */ color: oklch(22.4% 0.099 281.3);

Tailwind

colors: {
  custom: {
    50: '#5b4e7b',
    500: '#170f47',
    950: '#000000',
  },
}

SCSS

$custom: #170f47;
$custom-light: #5b4e7b;
$custom-dark: #000000;

JSON

{
  "hex": "#170f47",
  "rgb": {
    "r": 23,
    "g": 15,
    "b": 71
  },
  "hsl": {
    "h": 248.571,
    "s": 65.116,
    "l": 16.863
  },
  "oklch": {
    "l": 0.22375,
    "c": 0.09874,
    "h": 281.3
  },
  "luminance": 0.00979
}

Semantic roles & 50–950 ramp

primary

#170F47

secondary

#768130

accent

#E840D0

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040109

muted

#79777B

Preview Lab

Preview with #170F47

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

Preview Lab → · Contrast checker → · Palette generator →