#170F44#170F44

#170F44 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 22.0% C 0.094 H 282.3°. Best body text is #FFFFFF at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#170F44
RGB	rgb(23, 15, 68)
HSL	hsl(249, 64%, 16%)
HSV	hsv(249, 78%, 27%)
CMYK	cmyk(66.2%, 77.9%, 0%, 73.3%)
CIE-LAB	lab(8.49, 21.70, -32.00)
CIE-LCH	lch(8.49, 38.67, 304.14°)
OKLab	oklab(22.05% 0.0201 -0.0922)
OKLCH	oklch(22.05% 0.094 282.3)
XYZ	xyz(1.5672, 0.9411, 5.5668)
Luminance	0.0094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170F44 #3C440F

analogous

#0F2244 #170F44 #320F44

triadic

#170F44 #44170F #0F4417

tetradic

#170F44 #440F22 #3C440F #0F4432

square

#170F44 #440F22 #3C440F #0F4432

split-complementary

#170F44 #44320F #22440F

monochromatic

#080619 #080619 #170F44 #281A76 #3925A8

Accessibility & contrast

On white

17.67

#170F44 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#170F44 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170F44

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170F44	#FFFFFF	#000000	##FFFFFF
##170F44	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)

#001A46

Deuteranopia (green-blind)

#001743

Tritanopia (blue-blind)

#001D28

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #170f44;
/* rgb */ color: rgb(23, 15, 68);
/* oklch */ color: oklch(22.0% 0.094 282.3);

Tailwind

colors: {
  custom: {
    50: '#5b4e78',
    500: '#170f44',
    950: '#000000',
  },
}

SCSS

$custom: #170f44;
$custom-light: #5b4e78;
$custom-dark: #000000;

JSON

{
  "hex": "#170f44",
  "rgb": {
    "r": 23,
    "g": 15,
    "b": 68
  },
  "hsl": {
    "h": 249.057,
    "s": 63.855,
    "l": 16.275
  },
  "oklch": {
    "l": 0.22047,
    "c": 0.09434,
    "h": 282.3
  },
  "luminance": 0.00941
}

Semantic roles & 50–950 ramp

primary

#170F44

secondary

#737E30

accent

#E741CE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040109

muted

#79777B

Preview Lab

Preview with #170F44

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

Preview Lab → · Contrast checker → · Palette generator →