#170E4E#170E4E

#170E4E is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 23.0% C 0.110 H 279.7°. Best body text is #FFFFFF at 17.37:1 contrast (WCAG AA passes).

Color values

HEX	#170E4E
RGB	rgb(23, 14, 78)
HSL	hsl(248, 70%, 18%)
HSV	hsv(248, 82%, 31%)
CMYK	cmyk(70.5%, 82.1%, 0%, 69.4%)
CIE-LAB	lab(9.37, 25.99, -37.54)
CIE-LCH	lch(9.37, 45.66, 304.70°)
OKLab	oklab(23.01% 0.0185 -0.1084)
OKLCH	oklch(23.01% 0.11 279.7)
XYZ	xyz(1.8851, 1.0461, 7.3088)
Luminance	0.0105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.87

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170E4E #454E0E

analogous

#0E254E #170E4E #370E4E

triadic

#170E4E #4E170E #0E4E17

tetradic

#170E4E #4E0E25 #454E0E #0E4E37

square

#170E4E #4E0E25 #454E0E #0E4E37

split-complementary

#170E4E #4E370E #254E0E

monochromatic

#08051A #08051A #170E4E #261782 #3621B6

Accessibility & contrast

On white

17.37

#170E4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#170E4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170E4E

17.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170E4E	#FFFFFF	#000000	##FFFFFF
##170E4E	1.00	17.37	1.21	17.37
#FFFFFF	17.37	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D50

Deuteranopia (green-blind)

#00184D

Tritanopia (blue-blind)

#00202D

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #170e4e;
/* rgb */ color: rgb(23, 14, 78);
/* oklch */ color: oklch(23.0% 0.110 279.7);

Tailwind

colors: {
  custom: {
    50: '#5d4e80',
    500: '#170e4e',
    950: '#000000',
  },
}

SCSS

$custom: #170e4e;
$custom-light: #5d4e80;
$custom-dark: #000000;

JSON

{
  "hex": "#170e4e",
  "rgb": {
    "r": 23,
    "g": 14,
    "b": 78
  },
  "hsl": {
    "h": 248.438,
    "s": 69.565,
    "l": 18.039
  },
  "oklch": {
    "l": 0.23009,
    "c": 0.10993,
    "h": 279.7
  },
  "luminance": 0.01046
}

Semantic roles & 50–950 ramp

primary

#170E4E

secondary

#7C892F

accent

#EC3BD3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #170E4E

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

Preview Lab → · Contrast checker → · Palette generator →