#170E56#170E56

#170E56 is a very dark, vivid blue. Relative luminance 0.012; OKLCH L 24.0% C 0.121 H 277.7°. Best body text is #FFFFFF at 17.02:1 contrast (WCAG AA passes).

Color values

HEX	#170E56
RGB	rgb(23, 14, 86)
HSL	hsl(248, 72%, 20%)
HSV	hsv(248, 84%, 34%)
CMYK	cmyk(73.3%, 83.7%, 0%, 66.3%)
CIE-LAB	lab(10.32, 28.83, -41.46)
CIE-LCH	lch(10.32, 50.50, 304.81°)
OKLab	oklab(23.96% 0.0163 -0.1198)
OKLCH	oklch(23.96% 0.121 277.7)
XYZ	xyz(2.1896, 1.1679, 8.9123)
Luminance	0.0117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170E56 #4D560E

analogous

#0E2956 #170E56 #3B0E56

triadic

#170E56 #56170E #0E5617

tetradic

#170E56 #560E29 #4D560E #0E563B

square

#170E56 #560E29 #4D560E #0E563B

split-complementary

#170E56 #563B0E #29560E

monochromatic

#07041A #090521 #170E56 #25178B #331FBF

Accessibility & contrast

On white

17.02

#170E56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#170E56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170E56

17.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170E56	#FFFFFF	#000000	##FFFFFF
##170E56	1.00	17.02	1.23	17.02
#FFFFFF	17.02	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F58

Deuteranopia (green-blind)

#001955

Tritanopia (blue-blind)

#002332

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #170e56;
/* rgb */ color: rgb(23, 14, 86);
/* oklch */ color: oklch(24.0% 0.121 277.7);

Tailwind

colors: {
  custom: {
    50: '#5f4e87',
    500: '#170e56',
    950: '#000000',
  },
}

SCSS

$custom: #170e56;
$custom-light: #5f4e87;
$custom-dark: #000000;

JSON

{
  "hex": "#170e56",
  "rgb": {
    "r": 23,
    "g": 14,
    "b": 86
  },
  "hsl": {
    "h": 247.5,
    "s": 72,
    "l": 19.608
  },
  "oklch": {
    "l": 0.23958,
    "c": 0.12088,
    "h": 277.7
  },
  "luminance": 0.01168
}

Semantic roles & 50–950 ramp

primary

#170E56

secondary

#849030

accent

#EF39D8

background

#F6F4F8

surface

#EBE7EF

border

#C6C3CA

text

#05020B

muted

#7A787C

Preview Lab

Preview with #170E56

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

Preview Lab → · Contrast checker → · Palette generator →