#170E5A#170E5A

#170E5A is a very dark, vivid blue. Relative luminance 0.012; OKLCH L 24.4% C 0.126 H 276.9°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#170E5A
RGB	rgb(23, 14, 90)
HSL	hsl(247, 73%, 20%)
HSV	hsv(247, 84%, 35%)
CMYK	cmyk(74.4%, 84.4%, 0%, 64.7%)
CIE-LAB	lab(10.81, 30.22, -43.36)
CIE-LCH	lch(10.81, 52.86, 304.87°)
OKLab	oklab(24.44% 0.0151 -0.1253)
OKLCH	oklch(24.44% 0.126 276.9)
XYZ	xyz(2.3552, 1.2342, 9.7850)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170E5A #515A0E

analogous

#0E2B5A #170E5A #3D0E5A

triadic

#170E5A #5A170E #0E5A17

tetradic

#170E5A #5A0E2B #515A0E #0E5A3D

square

#170E5A #5A0E2B #515A0E #0E5A3D

split-complementary

#170E5A #5A3D0E #2B5A0E

monochromatic

#07041A #090625 #170E5A #25168F #321EC4

Accessibility & contrast

On white

16.84

#170E5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#170E5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170E5A

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170E5A	#FFFFFF	#000000	##FFFFFF
##170E5A	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00205C

Deuteranopia (green-blind)

#001A59

Tritanopia (blue-blind)

#002534

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #170e5a;
/* rgb */ color: rgb(23, 14, 90);
/* oklch */ color: oklch(24.4% 0.126 276.9);

Tailwind

colors: {
  custom: {
    50: '#604e8a',
    500: '#170e5a',
    950: '#000000',
  },
}

SCSS

$custom: #170e5a;
$custom-light: #604e8a;
$custom-dark: #000000;

JSON

{
  "hex": "#170e5a",
  "rgb": {
    "r": 23,
    "g": 14,
    "b": 90
  },
  "hsl": {
    "h": 247.105,
    "s": 73.077,
    "l": 20.392
  },
  "oklch": {
    "l": 0.24444,
    "c": 0.12623,
    "h": 276.9
  },
  "luminance": 0.01234
}

Semantic roles & 50–950 ramp

primary

#170E5A

secondary

#889430

accent

#F038DA

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020C

muted

#7A787D

Preview Lab

Preview with #170E5A

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

Preview Lab → · Contrast checker → · Palette generator →